Some of the rules to enter are completely ridiculous and unfortunately this is what I took away from it - how a menstruating woman can harm the spirituality of the place is beyond me - and how this can even be monitored is even more bizarre.
But, the inside is stunning. It's 300 rupees to enter and an extra 100 to take photos. They strictly search you and monitor this.
Make sure you go covered (ie long trousers and long top) and if going in a car, try to leave as much as possible in the car.