Investigators also found that the accused, Abdul Rahman (37), was closely related to one of the persons held in connection with the 2007 Glasgow International Airport attack, but failed to gather further leads in this line of inquiry.
"During his stay at Deoband in Uttar Pradesh, Rahman was introduced to two Pakistani nationals and he sheltered them in UP and in his hometown of Cuttack.
Rahman was arrested on Wednesday by a team of Delhi Police's Special Cell from Jagatpur in Odisha's Cuttack district. He was living there with his family and taught at a madrasa.
"Rahman also has close ties with one of the persons arrested in connection with the Glasgow attack and had rendered financial help for his sister's marriage.
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"However, it has so far turned out to be an entirely personal affair and there are no further leads in this regard," the official said.
Asif -- the first person to be arrested in connection with the module -- has now turned out to be the mutual link between Rahman and Umar Hyderabadi.
Hyderabadi was allegedly recruited by Rahman and is presently undergoing training at north Waziristan in Pakistan, said the official.
Hyderabadi, whose real name is not none, belongs to Hyderabad and came in touch with Rahman when he went there and allegedly delivered a heated speech. Rahman is believed to have delivered similar speeches in Odisha, Jharkhand and Karnataka too, the official said.