Razer Mamba is an amazing mouse... The response, the feel, the look, I think I'm in love
Logitech g15 keyboard is nice but its kind of big. Capable of doing more than an adverage keyboard... looks cool... but I think alot of people would perform better with just a basic layout. If you try the Mamba, you're likely to go back to the razer zone for a keyboard from them too
I'll recommend getting the logitech MX 518 gaming mouse and then selecting any corded keyboard of your choice.. Might stretch your budget a little.. If you are fixed on that 2000 INR margin then the link provided at the bottom might solve the issue for you..