Twelve of the injured are still in critical condition, the police said.

According to eye-witnesses, all the occupants of the bus were returning from a wedding party in Nadia. When they neared Dakhin Narayanpur, the driver spotted a speeding truck coming from the opposite direction and in order to avoid a head-on collision, he lost control of the mini-bus.

While Bisakha Sarkar, a 22-year-old student, died on the spot, Ramanath Sarkar, who was rushed to Jawaharlal Nehru Memorial Hospital at Kalyani by locals, died later.

All the injured were admitted in various hospitals at Naihati, Bhatpara and also at the RG Kar Hospital. The police are trying to arrest the truck driver who fled the spot with the vehicle soon after the accident.