Yes smoking marijuana is illegal in India. However, in some Hindu rituals marijuana is smoked and offered to god. The people intake a form of marijuana called as bhaang. Bhaang is made of marijuana leaves alongwith spices, almond and cold milk.
In some holy cities of India like Varanasi, there are government authorized shops that sell bhaang.
However smoking marijuana - yes, it is illegal.
Sure you can ! Is it legal ? NO If caught you can be fined for tresspassing and escorted off of the reservation.
You would capitalize Indian but not reservation because Indian is a proper noun but reservation is not.
The seven largest Indian Reservations in the United States are the Navajo Nation, the Pine Ridge Reservation, the Fort Apache Indian Reservation, the San Carlos Apache Indian Reservation, the Papago Indian Reservation, the Tohono O'odham Indian Reservation, and the Gila River Indian Reservation.
As far as we know, only on Indian reservations, at least it is on the reservation in Riverton, Wyoming
The population of Isabella Indian Reservation is 25,838.
Rosebud Indian Reservation was created in 1889.
Rosebud Indian Reservation's population is 21,245.
Flathead Indian Reservation was created in 1855.
Mendocino Indian Reservation was created in 1856.
Campo Indian Reservation was created in 1903.
Cheyenne River Indian Reservation was created in 1889.
Poarch Creek Indian Reservation was created in 1984.