Hi Shaik,
First of all, its chennai and not chenni
Living in chennai for almost 7 years, i must say this is one of the best metros in India.
Regarding your future, don't worry too much dude, as chennai is home to some of the big MNC's and i am sure you won't find
a tough time to get a new job in IT.
The only thing is chennai is bit hot (even more hotter these days.. as its summer season) , but i guess that wont be a
problem for you as you from Hyderabad which is also sunny.
Also, we have many Andhra mess on the OMR near almost all IT companies.. so food is not at all a problem.
So, i would say, nothing to fear about relocating to chennai
Cheers