Hi,
I’m not booked on this holiday, but did it in December, so thought I’d give you a few tips in case they are useful.
Take a small case of bag that you can fit what you need in overnight as you won’t have your luggage every night, so a bag of suitable size is useful. A few places don’t allow video cameras (although you can use the video function on a normal camera or smart phone). A few places (like Sarnath) won’t allow you to take bags or mobile phones in, so it’s definitely helpful to have a ‘normal’ camera with you as well.
I’d take some hand gel, preferably an anti-viral one, not just anti-bacterial as most are - Boots do an own brand one. We had lots of travelling and meals in boxes (from hotels) or at odd times so a few snacks to have with you would be handy. Beware of the cold. It might be warmer than a month ago but we were very cold as it was the coldest winter in 100 years. Plus travelling on open jeep in Ranthambore is very cold! Better to take a few layers. Don’t wear white/cream to visit the Taj Mahal as you’ll blend in with it!
I hope you enjoy it.