If you are going in season time the cost of rs 3000 becomes rs 8000 so if you are go there for 1 week approximately rs 40k and if you are going in non season time then 25k is enough until and unless you are spending lots of on luxury
First route ahmedabad-delhi-pathankot-palampur-bir second route ahmedabad-delhi-chandigarh-bir stay option
mostly you can find hostels few hotels only suggesting you to book private room in hostel like zostel
the hosteller fugler
During July u can visit Valley of flowers, Uttarakhand. June,July are the best season to visit. Valley will be full of beautiful flowers and aesthetic landscapes.
Yes ! Avoid western side as that will be super hot ! You may go to most of the mountains but be prepared for landslides ... Keeping an umbrella can be handy at most places