Completing its four-month long probe into the death of Rizwanur Rehman, the CBI will submit its final report to the Calcutta High Court on Tuesday in which the agency is likely to charge two members of the Todi family for alleged abetment to his suicide.
The report, which was earlier scheduled to be submitted in second week of December, is also likely to book two police officials for alleged destruction of evidence in the case.
The Calcutta High Court had directed the CBI to go into the circumstances of the mysterious death of Rizwanur Rehman, whose body was found on the rail tracks near Dum Dum on September 21 last year.
Following widespread allegations that police in collusion with influential Todi family were hushing up the case, the court had directed for a CBI probe in the death of the computer graphics teacher.
According to the CBI sources, the last suicide note of Rehman was retrieved from the computer of his kin. Rizwanur had died under mysterious circumstances after his wife Priyanka was taken back to her maternal home.
CBI gathered this data from the computer which was recovered from the house of Rehman's maternal aunt, who after his death on September 21 had deleted the letter, the CBI sources said.
The letter was retrieved at the forensic laboratory in which Rehman had stated the condition of his mind and non cooperation from the Todi family in allowing him to meet his wife, Priyanka.
According to CBI sources, close relatives of Priyanka, whom the victim had married, had allegedly used pressure tactics to drive Rizwanur to such a stage where he was forced to take the extreme step.
The CBI had in October registered a case against Todi and others under Section 302 of the Indian Penal Code (murder).
The agency checked the call records and examined all the family members of the victim as well as Priyanka, including Todi, during its three month-long investigations.
Besides the friends of Rizwanur, the police officials who allegedly had "pressurised" Rehman and Priyanka to separate were also examined.
The CBI has subjected Priyanka's uncle Pradeep Todi, an activist of an NGO, Pappu and a relative of Rehman under the lie detector test to ascertain whether the allegation that Todi's family paid Rs 11 lakh as separation fee was correct.
The CBI said while there was no direct evidence but circumstantial evidences pointed out that the money had been paid at a hotel in Kolkata -- which was also shared by a kin of the deceased computer graphics teacher.