Play on Indian Servers by blocking the others with MM server picker 2.4, this software lets you block all the unwanted servers while keeping the ones you selected open.
MM server picker 2.4 download link
If you have any doubt aboit this software being a keylogger or anything or this software getting you a VAC ban, dont even worry about it, people have been using this software from half a year or so. Read all about it here :
[Release] Matchmaking Server Picker v1.0, Let's you play on the Servers you enjoy playing on! : GlobalOffensive
You get 125 ping in singa which means you can get around 100 or below in India.