(SUBHEAD) Chandigarh: Aam Aadmi Party's (AAP) Punjab affairs co-in-charge Raghav Chadha has questioned Congress President Sonia Gandhi and Rahul Gandhi, saying that when former Chief Minister Captain Amarinder Singh accused Charanjit Singh Channi of running sand mafia and filed a written complaint against him, why did Congress did not take action against him? Chadha said instead of taking an action against Channi, the Congress leadership rewarded him and made chief minister.