Acting on a tip-off, the Ahmedabad City Detection of Crime Branch (DCB) recovered several incriminating documents from a well in the Sidi Saiyed Mosque compound near Lal Darwaja on Monday.

The documents include a register in Gujarati language containing details of police investigations in the 2007 Mumbai train blasts, a training manual for the terror camps across the country and police interrogation techniques including the Narco Analysis Test and the ways to circumvent them.

Assistant Superintendent of Police Himanshu Shukla announced this at a press briefing on Tuesday.

He said most of the documents recovered are either in Urdu or in Hindi, with the exception of the register. He said some of the documents are also inflammatory in nature and instigate the people to die in the name of religion.

He said the DCB also recovered some magazines in Urdu and Hindi. One of them, titled Nishan-e-Raah, has been edited by Mufti Abu Bashir, the mastermind of the Ahmedabad blasts.

Shukla said the documents were wrapped in a plastic bag and were thrown inside the well by one of the accused in the Ahmedabad serial blasts. He said the accused had abandoned the materials so that the police could not lay their hands on it, in case his house was raided. The bag was recovered with the help of the officials of the Ahmedabad Fire and Emergency Services.