I have visited Kumbhalgarh a few weeks ago and I was totally surprised when the guide told me about the fort. Its the second largest castle in the world with a wall that stretch till 23 km. However, the view is picturesque but its an empty deal. All the swords, duds and things are shifted to Udaipur City Palace.
So, as such there is nothing but just a uphill walk to have panorama of the city amidst mountains. We even avoided the evening light show. If you happen to go then get a guide. I wish they had a museum to the fort.