A Pakistani anti-terrorism court remanded in custody three men suspected of involvement in the Pathankot airbase attack in India's Punjab state, media reports said.Judge Bushra Zaman on Saturday granted six-day physical custody of the suspects to the counter-terrorism department (CTD) of Punjab province in Pakistan, Dawn online reported.The suspects were arrested from a rented house over suspicion of facilitating the January 2 attack in Pathankot airbase, merely 55 km from Pakistan border.Suspects Khalid Mahmood, Irshadul Haque and Muhammad Shoaib denied charges and were shifted to an undisclosed location for investigation.The attack left seven Indian security personnel killed. All six terrorists, suspected to be from Pakistan, were also killed in the attack on the airbase.