Nirmal Mitra Bhavan,10, Nellie Sen Gupta Sarani,Kolkata – 700087.
Phone : 2252 -0894/2252-6789/2252-9632/2252-2435
Email : cbiecs1955@gmail.com
MON-SAT 11:30 – 19:00
Sundays ,2nd Saturday & 4th Saturday are holidays. Office will remain closed in other holidays as applicable in West Bengal.