 Complete the following phrase:  Chandra Mohan Sharma born 1976 is an Indian social activist, who used the Right to Information RTI act to fight against illegal encroachments of government land. He was known for his campaign against the land mafia in NOIDA and Delhi region. In 2014, he was arrested, after he killed a homeless man and faked his own death. He was one of the early members of the Anna Hazare-led 