On January 1, 2008, eight para-military personnel were injured after their camp in Rampur was attacked. He was deported from the United Arab Emirates. Khan was deported to India from UAE and was picked up from the worldwide terminal of Mumbai airport early on Monday morning.
Khan, who hails from Fatehpur's Hathgaon village under Bandipur police jurisdiction of Uttar Pradesh, is being interrogated jointly by the ATS of the two states.
Sources said Khan was "pushed back" after authorities in UAE learnt about his illegal activities - raising funds for terrorists and communicating with them - in their country.
The Maharashtra ATS who nabbed Khan stated that the Juhu ATS unit swung into action and started making inquiries with Khan on a strong suspicion about his involvement in the terror attack in UP and various other anti-national activities. The Indian media claimed that Saleem Khan had received training at "a terrorist camp in Muzaffarabad".
The Maharashtra ATS said that as part of its monitoring of suspicious persons arriving from certain specific foreign destinations, they zeroed in on Salim Mohammed Khan on Monday. He first came under the radar of ATS in 2008.
The ATS said that based on a "Lookout Notice" issued for the accused, Khan was detained at Mumbai Airport and the Uttar Pradesh ATS was informed, which sent a team here for further investigations.
Intelligence agencies at Mumbai worldwide airport pulled him aside for questioning after a lookout notice was issued against Salim. The name of Khan cropped up during the interrogation of Aftab Ali who was arrested in May this year on the charge that he was spying for the ISI.
"He is an LeT member", said Uttar Pradesh's Additional Director General Anand Kumar. Aftab was also keeping a movement of troops in Uttar Pradesh.