The legal framework regarding crypto-currencies is yet to be laid down. RBI has not given any licence/authorization to any entity/company to deal with any virtual currency. In the absence of a legal framework, it is not advisable for citizens to deal with virtual currencies such as Bitcoins.
These currencies are normally used by criminals operating on the dark web or the hidden web. Legal, Bonafide businesses do not normally use Bitcoins. Therefore, any request for business transactions in Bitcoins should be taken as suspicious and be avoided. People trading in Bitcoins and other crypto currencies from various portals, need to be very careful when selling and buying Bitcoins as there are fraudsters everywhere lurking to cheat you by sending you fake identities for buying and selling crypto currencies.