If you are looking for wireless gaming peripherals, I sadly tell you it is very hard to accommodate any hardware that will fit your bill and perform well at the same time.
Biggest issue is that wireless keyboards are made on the cheaper membrane technology, not mechanical; this allows common issues like key-ghosting to creep in, also membrane keyboards have a naturally lower N-key rollover rate. After this the signal is further delayed by the polling rate and latency of the receiver and transmitter in usage. This all contributes to higher response times that ruins the fun in gaming.
The only peripheral that might suit you is the Roccat Pyra Wireless mouse, I have no idea on its pricing in India and the distributor for the same is
Mihira Tech Enterprises, Indore.
About the rest please let us know if you still want wireless peripherals in light of their shortcomings.
Hope this helps, Cheerio!!