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1) You have to reach New Alipurduar via train and then hire a cab from thereon 2) Take a flight from Delhi to Guwahati,
then train from Guwahati to New Alipurduar and then same as above. 3) Direct flight till Paro Bhutan
There are many trains ,the first one you get around 5am from kalka..irctc website..but this may be the peak season so book in advance..morning 6am train is the best with awesome views in morning
You can check online for the car availability..the road to the pass is good..although nov will be best to visit there but still you can go anytime just get bookings in advance or ask your hotel to arrange the cab for you or get a tour operator who does entire arrangement..you get plenty of them online
If your budget is around 10k go for SONY Cybershot.
If it is 20k then go for Point and shoot camera o DSLR.
If it is 30k then Go pro.
else if it is below that, Then take out your phone and take amazing pictures.
In july nearly monsoon all over..Mahabaleshwar n lonavala will be one of the lush green destinations..
Mount abu is also good.
South India having monsoon avoid that