40K in Bangalore

Survival -Yes, Living- No

Bro I'm surviving in 26k, many more are surviving in more lower than me too

Absolutely you can live and Survive. It's that you need to manage your money properly. I started with 24k in hand salary and managed pretty well for few years

Yes, you can definitely survive in an amazing way. But most of that will depend on your current lifestyle.

If bachelor: survival is fine