nderstood! I have completed the code modifications for Group 8: Stock NFO APIs and placed the benchmarking script ready for when Zerodha authentication is active.

Summary of What Was Done:
Redis Caching Implemented (

stock_nfo.controller.js
):

Added Redis caching with 1-hour TTL (EX 3600) for getNfoStockList (cache:nfo:list:...) and getNfoStockTokens (cache:nfo:tokens:...).
Wrapped all Redis operations in try...catch so that if Redis is ever unavailable, the system automatically falls back to disk CSV reading without breaking any functionality.
Disk Fallback Resilience (

stock_nfo.service.js
):

Updated generateFile to serve existing formatted CSV instrument files directly if live instrument downloading is paused/unauthenticated.
Benchmarking Script & Folders Created:

Script path: 

node_api/scratch/Group8/test_group8.js
Baseline folder: /var/www/html/node_api/scratch/Group8/before/
Post-test folder: /var/www/html/node_api/scratch/Group8/after/
Task Status:

Benchmark report execution is paused as requested. Whenever Zerodha is authenticated, running node scratch/Group8/test_group8.js after inside the container will log the live response time improvements.