One Rehman, who was enraged that his wife complained against him, went into Begumpet Police Station with a sickle and attacked his wife and four other in-laws, injuring them seriously. He managed to escape after the incident. Both Rehman and his wife frequently quarrelled. His wife and in-laws went to Begumpet PS to lodge a complaint. A furious Rehman chased them and attacked them with a sickle. All the injured have been admitted in the hospital and the wife's condition is serious, it is learnt.