Bigamy comprises of two words 'Bi' and 'gamy' which means 'two' and 'marriage'. Altogether it can be defined as entering into a marital relationship while the first marriage still exists. In the present time bigamy is a punishable offence under IPC and under Hindu Law.
An outright ban would defeat the purpose of a ban as it would only create a black market which is more harmful in the long term. However, regulation and taxation could be a solution to reduce the consumer base until scientific evidences prove their health risk,