Cannabis is an incredibly popular and widely used drug in India and is known as ganga, charas or bhang. India has a long history of cannabis use, and the drug is one of the five sacred plants mentioned in the Hindu texts, the Vedas.cannabis is illegal to use and possess in any form. Some figures place regular cannabis users as high as 10 million in India, many of these among the working poor. Many of these heavy users are dependent on the drug and suffer from major health problem like Weaken the immune system, increasing susceptibility to infections Cause nausea, vomiting and abdominal pain. . India is known to be one of the primary consumers of heroin in the world along with China, Pakistan and Iran. The drug is popular in India because it is cheap and readily available... it is a very harmful thing for human body ...