Maoists annually extort up to Rs.2,000 crore (Rs.20,000 million) across India, mostly targeting iron and coal mining companies, infrastructure project contractors and 'tendu patta' businessmen, says Chhattisgarh Director General of Police (DGP) Vishwa Ranjan.

"The per year extortion earnings of Maoists is up to Rs.2,000 crore, with Jharkhand being the top contributor," Ranjan, a former additional director of the Intelligence Bureau (IB), told IANS in an interview.