What should I do after completing B.Sc in zoology (H) if I want to pursue a carrier and do a job ?

Hi, The best option after Bachelor's degree is to go for a Master's degree. Complete your Master's from any IIT or IISC institute. Yes, you can get admission in IITs for Master's by giving IIT jam exam. If you are not familiar with this then read everything here – https://www.eduncle.com/iit-jam-