Wow no reply in months.
You should try searching local markets for such keyboards. I haven't tried any, but if I do, I would try these:
Microware USB Keyboard - Microware : Flipkart.com
Or this cool Apple keyboard like: Anker Ultra Slim Bluetooth Keyboard White | eBay
Or, a bluetooth one: Mini Bluetooth Keyboard FOR Android Iphone Ipad PS3 More | eBay
Any guesses why keyboards for android are way too costly? Logitech and other BRANDED ones start from 5K![]()
Maybe cause smaller and/or portable things take more effort to make?
It's the same way with Smaller and slim laptops. I don't see a requirement to buy a costly keyboard unless you have to use them a lot.
Btw, you can use a normal USB keyboard also with your device by connecting an OTG cable. Not sure if that would be enough for you though.