The Palam Vihar police on Monday arrested a man wanted in four murder cases from Delhi's Najafgarh.
The accused, Ajay Kumar, was one among five involved in the murder of the students' union president of Kurukshetra University, apart from three other murders in Haryana. Four others involved in the university murder had already been arrested. The Gurgaon police also seized two pistols (9mm and .32 bore) and 12 live cartridges.
Any information regarding the accused carried a reward of Rs 1 lakh, the police said.
"The gang of five had shot dead Virender Singh, the president of the students' union at Kurukshetra University in broad daylight on October 17 last year. We had arrested Tangu, Inderjeet in April. Ashok and Naresh were arrested in May," said police commissioner KK Sindhu.
Kumar was also booked in other cases, including robbery, drug smuggling and extortion in Haryana, Punjab and Rajasthan.
"Apart from the union leader case, they were involved in the murder of Jogendra, a resident of Dhamtan village; Subhash, the sarpanch of Mangal Kha Puthhi in Hansi; and Surender, a resident of Kaithal. Kumar had escaped after an encounter with the Kaithal police in February," said ACP Rajesh Phogat.