diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 412afd5eab..7b63015435 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -48,8 +48,15 @@ Need to update [https://github.com/SigNoz/signoz/tree/main/pkg/query-service](ht
 
 - git clone https://github.com/SigNoz/signoz.git
 - run `sudo make dev-setup` to configure local setup to run query-service
-- comment out frontend service section at `docker/clickhouse-setup/docker-compose.yaml#L59`
-- comment out query-service section at `docker/clickhouse-setup/docker-compose.yaml#L38`
+- comment out frontend service section at `docker/clickhouse-setup/docker-compose.yaml#L45`
+- comment out query-service section at `docker/clickhouse-setup/docker-compose.yaml#L28`
+- add below configuration to clickhouse section at `docker/clickhouse-setup/docker-compose.yaml`
+```
+    expose:
+      - 9000
+    ports:
+      - 9001:9000
+```
 - Install signoz locally without the frontend and query-service
   - If you are using x86_64 processors (All Intel/AMD processors) run `sudo make run-x86`
   - If you are on arm64 processors (Apple M1 Macbooks) run `sudo make run-arm`
diff --git a/pkg/query-service/README.md b/pkg/query-service/README.md
index c4c96a9757..72b69afc9a 100644
--- a/pkg/query-service/README.md
+++ b/pkg/query-service/README.md
@@ -2,27 +2,30 @@
 
 Query service is the interface between forntend and databases. It is written in **Golang**. It will have modules for all supported databases. Query service is responsible to:
 - parse the request from Frontend
-- create relevant Druid queries (and all other supported database queries)
+- create relevant Clickhouse queries (and all other supported database queries)
 - parse response from databases and handle error if any
-- build response in the format accepted by Frontend
+- clickhouse response in the format accepted by Frontend
 
 
-#### Druid Queries
-Internally we use both native and sql queries to Druid.
-
 #### Configuration
-Query Service needs below `env` variables to run:
+- Open ./constants/constants.go
+    - Replace ```const RELATIONAL_DATASOURCE_PATH = "/var/lib/signoz/signoz.db"``` \
+        with ```const RELATIONAL_DATASOURCE_PATH = "./signoz.db".```
+
+- Query Service needs below `env` variables to run:
+
 ```
-    DruidClientUrl: http://signoz-druid-router:8888
-    DruidDatasource: flattened_spans
+    ClickHouseUrl=tcp://localhost:9001
+    STORAGE=clickhouse
 ```
-The above values are the default ones used by SigNoz and are kept at `deploy/kubernetes/platform/signoz-charts/query-service/values.yaml`
+
+<!-- The above values are the default ones used by SigNoz and are kept at `deploy/kubernetes/platform/signoz-charts/query-service/values.yaml` -->
 
 #### Build and Run locally
 ```console
 cd pkg/query-service
 go build -o build/query-service main.go
-DruidClientUrl=xxxx DruidDatasource=flattened_spans build/query-service
+ClickHouseUrl=tcp://localhost:9001 STORAGE=clickhouse build/query-service
 ```
 
 #### Docker Images