Lenovo — Faulty laptop and no replacement

Address:

New Delhi, Delhi, 110034

I had purchase my laptop on 25th jun 2016 however i found some issue with hard disk and raised a complaint on 2nd july 2016 and engineer visit on 9th jul 2016 and confirm the same and mentioned the hard disk needs to be changed
Then i found there is problem with keyboard the same needs to be replaced
However after sending so many emails to the lenovo
Engineer visit on 28th jul 2016 and in process of changing parts and repeatedly trying to fix the parts because of that reason discoloration happened in my laptop and the changed keyboard is also damaged