Hey Vidya, I would recommend customize it urself that would be a lot cheaper and you’ll enjoy better.
Reach delhi or chandigarh from flight that would cost you INR4-5Kper pax approx.if booked timely
Reach kalka in train or bus from there.
Catch train from kalka to shimla and trust me it is the best to enjoy the scenic views around.you’ll not regret it!(the train departures early morning)there are many trains but tickets needs to be booked in advance or tatkal.ticket 160-500perpax depends on train
Reach shimla around 11am.hire cab INR200max for lift to mall road.
From lift go to mall road and your hotel(range1000-2000)book online and on mall road.Le talbot was good with view and there are many other.
During shimla stay visit mall road,go to jhaku temple using ropeway so basically u dont need much of cab as everything is walking and all is on mall road itself.dont go to kufri in summers its not worth
You can hire a cab from shimla only,you’ll get many agents in shimla everywhere bargain for a good deal to manali to and fro.
Reach manali and roam around places rest you can check my blog on manali and rohtang for things to do.dm for any details
Flight will be from Bangalore to Chandigarh only since after chd , no flight for Himachal. It will be minimum 5 k each , so 20k and let's say 40 k if want to book return already.
From Chandigarh, you can take Ac bus till Shimla , Cost can be around 300 to 500 each, so 2k . and If want to go by taxi, it's around 2k to 3k. after travelling in Shimla., one can travel to Manali from Shimla also. Himsuta private bus also goes from Shimla bus stand, it's a 8 hour journey and costs you the same around 500 per seat depends on bus rates. so again for 4 people 2k and count same for the return also.