Lambda Times Out - execute_statement

Using Lambda to access Aurora Serverless using these commands raise the following error:
"Task timed out after 7.01 seconds"
- I am only retrieving 3 rows so data size is not the issue
- I have tried longer timeout periods (upto 15 mins)
- I have also tested connectivity with my Aurora Serverless (VPC) using AWS-CLI(EC2 Instance) commands from within the VPC.
- The Security Group for Aurora Cluster allows all TCP traffic from within VPC

What I have understood so far is that the "execute_statement" function does not stops execution itself. Which leads to timeout of Lambda. Still confused how to resolve this issue.

`
import json
import boto3
import os
rds_client = boto3.client('rds-data')
db_cluster_arn = str(os.environ['DBClusterArn'])
secrets_arn = str(os.environ['SecretsArn'])
db_name = str(os.environ['DatabaseName'])
schema = str(os.environ['DatabaseName'])

def execute_statement(sql):
response = rds_client.batch_execute_statement(
secretArn = secrets_arn,
database = db_name,
resourceArn = db_cluster_arn,
sql = sql
)
return response

def lambda_handler(event, context):
response = execute_statement(f"select * from EmployeesTest")
print(response['records'])
return {
'statusCode': 200,
'body': json.dumps('Hello from Lambda!')
}
`