Chandigarh, April 21 -- The resident welfare associations (RWAs) on Sunday opposed the Chandigarh administration's move, hiking property tax and increasing charges for the community centres. They submitted a memorandum to MP Satnam Singh Sandhu regarding the issue. The Congress' local unit staged a protest at the housing board light point in Manimajra, seeking rollback of the hike in property tax as well as electricity and water charges, house tax, garbage fee and collector rates....