Police named Palak Sher Masih and Suraj Masih as suspects, linking them to Pakistani operatives via Harpreet Singh, now lodged in Amritsar Central Jail.
Waheed was one of the many Pak nationals who have been asked to leave India after the brutal terrorist attack that killed 26 people in Pahalgam last week.
The Centre on Wednesday announced the closure of the Attari-Wagah integrated check post (ICP), reducing the strength of the high commissions in India and Pakistan to 30 officials each, and suspended the SAARC Visa Exemption Scheme.
Wanted criminal Mushtaq Ali, alias Raj Ali, who attacked Bari Brahmana SHO on April 10, was being taken from Baba Bakala in Amritsar to Jammu when he tried escaping police custody and was grievously injured. He was declared dead at Govt Medical College and Hospital in Jammu.