There is no official confirmation of this device yet, though it is expected to support OTG. To check all the other details of the device use, this link : Xiaomi Mi Pad 4
Xiaomi Mi Pad 4 is still to be launched in Indian markets so the performance cannot be judged right now. You will have to wait for the Mi Pad 4 to release in Indian markets.
To check for all the other details use this link Mi Pad 4