You don't have to carry your own camping equipment as you can rent it at Manali.
The rock is fantastic very clean granite and the problems are five star ones. Tha best season to go there is from the beginning of July to the end of September. You can find more information and a kind of a problem guide at phil's page: http://www.pils-trips.com
Boulderers at Lalu's dhaba. Lalu second on the left