Rohan,
I started developing Rails with Windows 7 & RubyMine. After about two months, I switched to Linux Mint 16 and never looked back. Learning a new operating systems + Rails/Ruby at the same time can be a lot to take in, but it was worth it. The vast repository information available on the Internet makes jumping to Linux much easier too.
If you're game, try building a VM or even a dual boot machine running Linux to develop Rails apps. I doubt you'll regret it.
Respectfully,
Cody Skidmore