The Central Intelligence Cell (CIC) of the NBR sent separate letters to the banks seeking account details of former state minister and BNP lawmaker Fazlur Rahman Patal, former Awami League (AL) lawmaker Rafiqul Islam, former Jamaat lawmaker Shahjahan Chowdhury, businessman AK Azad, Shamim Iskander, brother of BNP chairperson Khaleda Zia, among others.

The NBR also asked the banks to stop withdrawal and transfer of money from the accounts of Shahjahan Chowdhury and his wife Johra Begum until further notice.

The letters directed the banks to provide the account statements of last 6 to 10 years till the last printout of the audit trial.

As per the directives, the banks will have to come up with detailed information about transactions made through personal account, joint account, current account, foreign currency account, savings account, credit account, and credit cards.

Sources said that the revenue board would match the tax returns against the transaction reports to learn the sources of these people's income and check if they have been involved in tax evasion.

The steps came in line with the caretaker government's ongoing anti-graft crackdown.

Those whose accounts details have been sought are Fazlur Rahman Patal, his wife Quamrun Nahar, daughters Farhana Sharmeen and Farzana Sharmeen, sons Yeaseer Arshad and Iftekhar Arshad, Mizanur Rahman, Bazlur Rahman, Zillur Rahman, Harunur Rashid, son of Arshad Alam and Nazmul Islam, son of Serajul Islam.

Besides, the banks will have to provide the transaction reports of Quamrul Huda, brother of former communications minister Nazmul Huda, Fayek Iskander and Fasbir Iskander, sons of Shamim Iskander, Sayera Akhter, wife of former AL lawmaker Kamal Ahmed Majumder and their daughter Rashida Akhter.

Also on the list are former AL lawmaker Rafiqul Islam, his wife Morsheda Akhter, daughters Khadijatul Anwar Sony and relatives Anwara Begum, Alam Ara Begum, Nasimul Anwar, Nargisul Anwar, SM Habib, Khorsheda Khanam, Fakhrul Anwar and Hasnatul Anwar.

The NBR also asked for bank transaction reports of businessman and publisher of the daily Samokal AK Azad and his brothers Motaleb Hossain, Belal Hossain, Ismail Hossain, Azad's wife Saima Azad Sammi, sons Sakib Azad and Sajid Azad, and daughter Isha Azad.

Besides, the banks will have to provide the transaction reports of Syeda Arzuman Banu Nargis, wife of Jahangir Kabir Nanak, their daughter Syeda Amreen Rakhi, son Saimur Rahman, Don Advertising Limited, Don Printing Limited, Don Enterprise and Agrani Fashion Limited.

Also on the list are Mohammad Atikullah and his wife Farhana Mahnaz, son Orad Osman, daughter Pariha Muskan Mahnaz and Avsama Mahnaz, and A-1 Trade International, A-1 International, A-1 Printing and Packaging Limited, A-1 Housing Limited, Tele Banglanet Limited, Rupali Sweaters Industries, A-1 Attire, Promise Automobiles and Promise Network.