How can I use a 16A appliance in a UK 13A socket?
According to my calculator 1425 watts at 240V is 6 amps, well within the 13-amp limit.

Are the round-pin 16 amp plugs standard in kitchens in India? If yes, that's probably why it has that particular connector. You should be able to get a 13-amp fused plug at any hardware store.