Minister of State for Home Affairs Kiren Rijiju on Wednesday said ULFA general secretary Anup Chetia's deportation from Bangladesh would help crack many cases related to the banned outfit."Handing over of jailed United Liberation Front of Asom (ULFA) leader Anup Chetia by Bangladesh to India is a major breakthrough. Chetia is a top leader of ULFA and his handing over will lead to cracking of many cases. The central agencies and the Assam Police will investigate him," he told the media here.Rijiju said there were several issues related to finances and help in setting up camps in areas of India bordering China and Myanmar that needed to be probed.Prime Minister Narendra Modi tweeted his thanks to Bangladesh Premier Sheikh Hasina for helping India fight terrorism.Chetia, a founder-member of ULFA, was arrested by Bangladesh forces in 1997 under the Foreigners and Passport Act and faces several other charges, including possession of firearms and currencies of 16 countries. In Assam, he faces charges of extortion and murders. He is slated to be brought back to India on Wednesday.