Jalandhar, April 21 -- In a blow to the Congress in Punjab's Jalandhar parliamentary constituency, Karamjit Kaur Chaudhary, the wife of two-time MP Santokh Singh Chaudhary, and Tajinder Singh Bittu, the AICC secretary in-charge of Himachal Pradesh, joined the Bharatiya Janata Party (BJP) in New Delhi on Saturday....