In India, electric sockets and plugs are more often than not (they can vary) like the picture here: three large round pins (the head pin bigger than the other two). Adapters are not always easy to find in the UK and can be expensive. If you can’t find one prior to travel don’t worry.  Our hotel is well placed next to lively markets and bazaars and you should be able to find one cheaply too.  Giving yourself a mission to get one along the colourful stalls can be enjoyable too!