Chandigarh: Punjab Vidhan Sabha session started with obituary references here on Friday. Obituaries were given departed souls including former PM Atal Bihari Vajpayee, former MLA Kuldeep Singh Wadala, Chattisgarh governor Balramji Das Tondon, former minister Surinder Singla, former MLA Joginder Nath and veteran journalist Kuldip Nayar.