KARACHI: One student was killed and another injured here today when gunmen opened fire on a group of religious students protesting against the killing of three Sunni Muslim scholars, police said. The scholars from a prestigious Islamic seminary here were killed in a grenade attack on their vehicle earlier in the day.Meanwhile, a Sunni extremist, wanted by police in connection with hundreds of attacks in Pakistan, offered a reward today to anyone who kills Prime Minister Nawaz Sharif. Riaz Basra said in a statement that he would pay Pak Rs 100 million ($ 2.2 million) to see Sharif dead.Veerappan offensiveCHENNAI: With Tamil Nadu and Karnataka Governments firmly rejecting the fresh conditions imposed by Veerappan for his promised surrender, resumption of joint operations by the police forces of both States appears imminent. Bihar blastHAJIPUR: Two women were killed and two others injured when a cluster of bombs, kept underneath a field, exploded at Taibpur village in Vaishali district last evening, police said. The injured have been removed to the Patna Medical College Hospital. Their condition was stated to be critical.