quit and quickly get a dev job in some small company for very less money
improve and move up the ladder .. as in small company to big company
that's exactly how its done. many top companies hire developers only from IITs and NITs.. but there are plenty of others who come join after 2yrs of experience just because they are really talented and can crack the stupid dumb absurdly difficult useless interviews
btw you need to start and apply for interviews right away from today, this is part of the practice.. more you give, better you become..
if you wait for 1 yr to prepare, its never going to happen...
oh and also move to bangalore, you are in mumbai expecting a dev job and climbing up the ladder by switching companies yearly ? not going to happen... LOL..