B.Sc. (Hons.), M.Sc. Dhaka University. Assistant Professor & Head of the Department, Department of Chemistry, St. Joseph Higher Secondary School (Master Trainer On Creative Question Setting, Moderating and Marking SESDP, Ministry of Education). Chemistry 1st Paper & 2nd Paper, Class XI - XII (Bangla Version, New Curriculum). Higher Secondary Chemistry, First Paper, Second Paper & Practical (English Version, Previous Curriculum).