diff --git a/packages/nocodb-nest/src/modules/datas/data-alias-nested/data-alias-nested.controller.ts b/packages/nocodb-nest/src/modules/datas/data-alias-nested/data-alias-nested.controller.ts
index ee69608615..0b367fd190 100644
--- a/packages/nocodb-nest/src/modules/datas/data-alias-nested/data-alias-nested.controller.ts
+++ b/packages/nocodb-nest/src/modules/datas/data-alias-nested/data-alias-nested.controller.ts
@@ -1,4 +1,158 @@
-import { Controller } from '@nestjs/common';
+import { Controller, Delete, Get, Param, Post, Request } from '@nestjs/common';
+import { Acl } from '../../../middlewares/extract-project-id/extract-project-id.middleware';
+import { DataAliasNestedService } from './data-alias-nested.service';
 
 @Controller('data-alias-nested')
-export class DataAliasNestedController {}
+class DataAliasNestedController {
+  constructor(private dataAliasNestedService: DataAliasNestedService) {}
+
+  // todo: handle case where the given column is not ltar
+  @Get('/api/v1/db/data/:orgs/:projectName/:tableName/:rowId/mm/:columnName')
+  @Acl('mmList')
+  async mmList(
+    @Request() req,
+    @Param('columnName') columnName: string,
+    @Param('rowId') rowId: string,
+    @Param('projectName') projectName: string,
+    @Param('tableName') tableName: string,
+  ) {
+    return await this.dataAliasNestedService.mmList({
+      query: req.query,
+      columnName: columnName,
+      rowId: rowId,
+      projectName: projectName,
+      tableName: tableName,
+    });
+  }
+
+  @Get(
+    '/api/v1/db/data/:orgs/:projectName/:tableName/:rowId/mm/:columnName/exclude',
+  )
+  @Acl('mmExcludedList')
+  async mmExcludedList(
+    @Request() req,
+    @Param('columnName') columnName: string,
+    @Param('rowId') rowId: string,
+    @Param('projectName') projectName: string,
+    @Param('tableName') tableName: string,
+  ) {
+    return await this.dataAliasNestedService.mmExcludedList({
+      query: req.query,
+      columnName: columnName,
+      rowId: rowId,
+      projectName: projectName,
+      tableName: tableName,
+    });
+  }
+
+  @Get(
+    '/api/v1/db/data/:orgs/:projectName/:tableName/:rowId/hm/:columnName/exclude',
+  )
+  @Acl('hmExcludedList')
+  async hmExcludedList(
+    @Request() req,
+    @Param('columnName') columnName: string,
+    @Param('rowId') rowId: string,
+    @Param('projectName') projectName: string,
+    @Param('tableName') tableName: string,
+  ) {
+    return await this.dataAliasNestedService.hmExcludedList({
+      query: req.query,
+      columnName: columnName,
+      rowId: rowId,
+      projectName: projectName,
+      tableName: tableName,
+    });
+  }
+
+  @Get(
+    '/api/v1/db/data/:orgs/:projectName/:tableName/:rowId/bt/:columnName/exclude',
+  )
+  @Acl('btExcludedList')
+  async btExcludedList(
+    @Request() req,
+    @Param('columnName') columnName: string,
+    @Param('rowId') rowId: string,
+    @Param('projectName') projectName: string,
+    @Param('tableName') tableName: string,
+  ) {
+    return await this.dataAliasNestedService.btExcludedList({
+      query: req.query,
+      columnName: columnName,
+      rowId: rowId,
+      projectName: projectName,
+      tableName: tableName,
+    });
+  }
+
+  // todo: handle case where the given column is not ltar
+
+  @Get('/api/v1/db/data/:orgs/:projectName/:tableName/:rowId/hm/:columnName')
+  @Acl('hmList')
+  async hmList(
+    @Request() req,
+    @Param('columnName') columnName: string,
+    @Param('rowId') rowId: string,
+    @Param('projectName') projectName: string,
+    @Param('tableName') tableName: string,
+  ) {
+    return await this.dataAliasNestedService.hmList({
+      query: req.query,
+      columnName: columnName,
+      rowId: rowId,
+      projectName: projectName,
+      tableName: tableName,
+    });
+  }
+
+  @Delete(
+    '/api/v1/db/data/:orgs/:projectName/:tableName/:rowId/:relationType/:columnName/:refRowId',
+  )
+  @Acl('relationDataRemove')
+  async relationDataRemove(
+    @Request() req,
+    @Param('columnName') columnName: string,
+    @Param('rowId') rowId: string,
+    @Param('projectName') projectName: string,
+    @Param('tableName') tableName: string,
+    @Param('refRowId') refRowId: string,
+    @Param('relationType') relationType: string,
+  ) {
+    await this.dataAliasNestedService.relationDataRemove({
+      columnName: columnName,
+      rowId: rowId,
+      projectName: projectName,
+      tableName: tableName,
+      cookie: req,
+      refRowId: refRowId,
+    });
+
+    return { msg: 'The relation data has been deleted successfully' };
+  }
+
+  // todo: Give proper error message when reference row is already related and handle duplicate ref row id in hm
+  @Post(
+    '/api/v1/db/data/:orgs/:projectName/:tableName/:rowId/:relationType/:columnName/:refRowId',
+  )
+  @Acl('relationDataAdd')
+  async relationDataAdd(
+    @Request() req,
+    @Param('columnName') columnName: string,
+    @Param('rowId') rowId: string,
+    @Param('projectName') projectName: string,
+    @Param('tableName') tableName: string,
+    @Param('refRowId') refRowId: string,
+    @Param('relationType') relationType: string,
+  ) {
+    await this.dataAliasNestedService.relationDataAdd({
+      columnName: columnName,
+      rowId: rowId,
+      projectName: projectName,
+      tableName: tableName,
+      cookie: req,
+      refRowId: refRowId,
+    });
+
+    return { msg: 'The relation data has been created successfully' };
+  }
+}
diff --git a/packages/nocodb-nest/src/modules/datas/data-alias-nested/data-alias-nested.service.spec.ts b/packages/nocodb-nest/src/modules/datas/data-alias-nested/data-alias-nested.service.spec.ts
new file mode 100644
index 0000000000..05b137a1ab
--- /dev/null
+++ b/packages/nocodb-nest/src/modules/datas/data-alias-nested/data-alias-nested.service.spec.ts
@@ -0,0 +1,18 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { DataAliasNestedService } from './data-alias-nested.service';
+
+describe('DataAliasNestedService', () => {
+  let service: DataAliasNestedService;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [DataAliasNestedService],
+    }).compile();
+
+    service = module.get<DataAliasNestedService>(DataAliasNestedService);
+  });
+
+  it('should be defined', () => {
+    expect(service).toBeDefined();
+  });
+});
diff --git a/packages/nocodb-nest/src/modules/datas/data-alias-nested/data-alias-nested.service.ts b/packages/nocodb-nest/src/modules/datas/data-alias-nested/data-alias-nested.service.ts
new file mode 100644
index 0000000000..0ef4234387
--- /dev/null
+++ b/packages/nocodb-nest/src/modules/datas/data-alias-nested/data-alias-nested.service.ts
@@ -0,0 +1,282 @@
+import { Injectable } from '@nestjs/common';
+import { NcError } from '../../../helpers/catchError';
+import { PagedResponseImpl } from '../../../helpers/PagedResponse';
+import { Base, Model } from '../../../models';
+import NcConnectionMgrv2 from '../../../utils/common/NcConnectionMgrv2';
+import {
+  getColumnByIdOrName,
+  getViewAndModelByAliasOrId,
+  PathParams,
+} from '../helpers';
+
+@Injectable()
+export class DataAliasNestedService {
+  // todo: handle case where the given column is not ltar
+  async mmList(
+    param: PathParams & {
+      query: any;
+      columnName: string;
+      rowId: string;
+    },
+  ) {
+    const { model, view } = await getViewAndModelByAliasOrId(param);
+
+    if (!model) NcError.notFound('Table not found');
+
+    const base = await Base.get(model.base_id);
+
+    const baseModel = await Model.getBaseModelSQL({
+      id: model.id,
+      viewId: view?.id,
+      dbDriver: await NcConnectionMgrv2.get(base),
+    });
+
+    const column = await getColumnByIdOrName(param.columnName, model);
+
+    const data = await baseModel.mmList(
+      {
+        colId: column.id,
+        parentId: param.rowId,
+      },
+      param.query as any,
+    );
+    const count: any = await baseModel.mmListCount({
+      colId: column.id,
+      parentId: param.rowId,
+    });
+
+    return new PagedResponseImpl(data, {
+      count,
+      ...param.query,
+    });
+  }
+
+  async mmExcludedList(
+    param: PathParams & {
+      query: any;
+      columnName: string;
+      rowId: string;
+    },
+  ) {
+    const { model, view } = await getViewAndModelByAliasOrId(param);
+    if (!model) NcError.notFound('Table not found');
+
+    const base = await Base.get(model.base_id);
+
+    const baseModel = await Model.getBaseModelSQL({
+      id: model.id,
+      viewId: view?.id,
+      dbDriver: await NcConnectionMgrv2.get(base),
+    });
+    const column = await getColumnByIdOrName(param.columnName, model);
+
+    const data = await baseModel.getMmChildrenExcludedList(
+      {
+        colId: column.id,
+        pid: param.rowId,
+      },
+      param.query,
+    );
+
+    const count = await baseModel.getMmChildrenExcludedListCount(
+      {
+        colId: column.id,
+        pid: param.rowId,
+      },
+      param.query,
+    );
+
+    return new PagedResponseImpl(data, {
+      count,
+      ...param.query,
+    });
+  }
+
+  async hmExcludedList(
+    param: PathParams & {
+      query: any;
+      columnName: string;
+      rowId: string;
+    },
+  ) {
+    const { model, view } = await getViewAndModelByAliasOrId(param);
+
+    if (!model) NcError.notFound('Table not found');
+
+    const base = await Base.get(model.base_id);
+
+    const baseModel = await Model.getBaseModelSQL({
+      id: model.id,
+      viewId: view?.id,
+      dbDriver: await NcConnectionMgrv2.get(base),
+    });
+
+    const column = await getColumnByIdOrName(param.columnName, model);
+
+    const data = await baseModel.getHmChildrenExcludedList(
+      {
+        colId: column.id,
+        pid: param.rowId,
+      },
+      param.query,
+    );
+
+    const count = await baseModel.getHmChildrenExcludedListCount(
+      {
+        colId: column.id,
+        pid: param.rowId,
+      },
+      param.query,
+    );
+
+    return new PagedResponseImpl(data, {
+      count,
+      ...param.query,
+    });
+  }
+
+  async btExcludedList(
+    param: PathParams & {
+      query: any;
+      columnName: string;
+      rowId: string;
+    },
+  ) {
+    const { model, view } = await getViewAndModelByAliasOrId(param);
+    if (!model) NcError.notFound('Table not found');
+
+    const base = await Base.get(model.base_id);
+
+    const baseModel = await Model.getBaseModelSQL({
+      id: model.id,
+      viewId: view?.id,
+      dbDriver: await NcConnectionMgrv2.get(base),
+    });
+
+    const column = await getColumnByIdOrName(param.columnName, model);
+
+    const data = await baseModel.getBtChildrenExcludedList(
+      {
+        colId: column.id,
+        cid: param.rowId,
+      },
+      param.query,
+    );
+
+    const count = await baseModel.getBtChildrenExcludedListCount(
+      {
+        colId: column.id,
+        cid: param.rowId,
+      },
+      param.query,
+    );
+
+    return new PagedResponseImpl(data, {
+      count,
+      ...param.query,
+    });
+  }
+
+  // todo: handle case where the given column is not ltar
+  async hmList(
+    param: PathParams & {
+      query: any;
+      columnName: string;
+      rowId: string;
+    },
+  ) {
+    const { model, view } = await getViewAndModelByAliasOrId(param);
+
+    if (!model) NcError.notFound('Table not found');
+
+    const base = await Base.get(model.base_id);
+
+    const baseModel = await Model.getBaseModelSQL({
+      id: model.id,
+      viewId: view?.id,
+      dbDriver: await NcConnectionMgrv2.get(base),
+    });
+
+    const column = await getColumnByIdOrName(param.columnName, model);
+
+    const data = await baseModel.hmList(
+      {
+        colId: column.id,
+        id: param.rowId,
+      },
+      param.query,
+    );
+
+    const count = await baseModel.hmListCount({
+      colId: column.id,
+      id: param.rowId,
+    });
+
+    return new PagedResponseImpl(data, {
+      count,
+      ...param.query,
+    } as any);
+  }
+
+  async relationDataRemove(
+    param: PathParams & {
+      columnName: string;
+      rowId: string;
+      refRowId: string;
+      cookie: any;
+    },
+  ) {
+    const { model, view } = await getViewAndModelByAliasOrId(param);
+    if (!model) NcError.notFound('Table not found');
+
+    const base = await Base.get(model.base_id);
+
+    const baseModel = await Model.getBaseModelSQL({
+      id: model.id,
+      viewId: view?.id,
+      dbDriver: await NcConnectionMgrv2.get(base),
+    });
+
+    const column = await getColumnByIdOrName(param.columnName, model);
+
+    await baseModel.removeChild({
+      colId: column.id,
+      childId: param.refRowId,
+      rowId: param.rowId,
+      cookie: param.cookie,
+    });
+
+    return true;
+  }
+
+  // todo: Give proper error message when reference row is already related and handle duplicate ref row id in hm
+  async relationDataAdd(
+    param: PathParams & {
+      columnName: string;
+      rowId: string;
+      refRowId: string;
+      cookie: any;
+    },
+  ) {
+    const { model, view } = await getViewAndModelByAliasOrId(param);
+    if (!model) NcError.notFound('Table not found');
+
+    const base = await Base.get(model.base_id);
+
+    const baseModel = await Model.getBaseModelSQL({
+      id: model.id,
+      viewId: view?.id,
+      dbDriver: await NcConnectionMgrv2.get(base),
+    });
+
+    const column = await getColumnByIdOrName(param.columnName, model);
+    await baseModel.addChild({
+      colId: column.id,
+      childId: param.refRowId,
+      rowId: param.rowId,
+      cookie: param.cookie,
+    });
+
+    return true;
+  }
+}
diff --git a/packages/nocodb-nest/src/modules/datas/datas.module.ts b/packages/nocodb-nest/src/modules/datas/datas.module.ts
index 52a29f1441..eb92c8f586 100644
--- a/packages/nocodb-nest/src/modules/datas/datas.module.ts
+++ b/packages/nocodb-nest/src/modules/datas/datas.module.ts
@@ -6,9 +6,10 @@ import { DataAliasExportController } from './data-alias-export/data-alias-export
 import { DataAliasNestedController } from './data-alias-nested/data-alias-nested.controller';
 import { OldDatasController } from './old-datas/old-datas.controller';
 import { BulkDataAliasService } from './bulk-data-alias/bulk-data-alias.service';
+import { DataAliasNestedService } from './data-alias-nested/data-alias-nested.service';
 
 @Module({
   controllers: [DatasController, BulkDataAliasController, DataAliasExportController, DataAliasNestedController, OldDatasController],
-  providers: [DatasService, BulkDataAliasService]
+  providers: [DatasService, BulkDataAliasService, DataAliasNestedService]
 })
 export class DatasModule {}