I went there this winter in feburary. it is a hill station in himachal pradesh. it is a very charming little town about 12 kms from simla. 0ne feels at home the moment u arrive there, its so warm, not literally but u feel that way. it got a imperial flavour, which is very british I guess. its got lots of places to stay in. book earlier as it always has visiters. u can see the famous boarding sanavar from kasauli, if u like u can even to to it, its not very far. do take a trek to monkey point, although u wont find monkeys troubling u on the way, but go there before 4 as it shuts at 4p.m.the view fromthere is awesome, but u are not allowed to photograph there. also walk up to kushwant singhs house, there are beautiful cottage type house lined through the town. one can do a bit of shooping even here. theres a very famous shop called daily needs try the sheek kababs there. although food is not too great in kasauli so pack up some ration before u gothere. maggi is easily available though, so that could come to your rescue, its lovely to eat maggi in these cold places. it is a very compact town, and people seem very helpful and friendly. so dont worry just unwind and have a great time.it is best suited for all.