Chandigarh, May 16 -- In a set back to Aam Aadmi Party (AAP), former finance minister in the SAD government late Captain Kanwaljit Singh's wife Sarabjit Kaur and her daughter Manpreet Kaur Dolly on Wednesday joined the SAD. Capt Kanwaljit was killed in an accident in 2009, following which both had left the SAD. Sarabjit had joined the AAP and contested assembly elections from Dera Bassi, but lost to SAD's NK Sharma....