AAP MLA from Patiala Rural, Dr Balbir Singh on Saturday took oath as a minister in the Punjab cabinet. The oath was administered by Governor Banwarilal Purohit in the presence of CM Bhagwant Mann and AAP MP Raghav Chadha. "I was...one of a billion helpless Indian voters, who always got cheated...Then Arvind Kejriwal gave me a new vision," he tweeted.