C

Manju Mam 

Biology

Graduated and post graduated in biotechnology honours. Experienced in guiding civil services aspirants. Cleared hcs mains 2018. Command in Biology and science and tech which is a very vital part for scoring good in GS pre and mains. Students can rely on sources provided such that they will not need to refer any other outer sources. Will help in scoring high marks as these subjects can be a game changer in the exam.