Hi Sania,
After doing your B.Tech in Biotechnology, you can either choose to do a post graduate degree in the area of Biotechnology, if you are interested in Research. On the other hand you could also look into doing a management degree if you are looking at a Management post in the industry (eg Pharmaceutical Industry).
If you prefer to go down the technical research route, then you first need to get a post graduate degree –an M.Tech degree would be preferable. There are many universities that you could look at. Some of these are Anna University, Chennai; University of Calcutta, Jadavpur University, Calcutta; Indian Institute of Technology, New Delhi; Birla Institute of Technology & Science, Pilani, Jawaharlal Nehru Tech University, Hyderabad.
You could also do a degree in another related area such as Genetics, clinical research etc. This would depend upon your specific area of interest. After your PG, you can go in for PhD after which you can go in for Post-doctoral research. Here, we would like to mention that students usually prefer to do PhD and Post-doctoral research from abroad.
Depending on your interest you could opt for a course in SAP for life sciences. Designed to meet the unique challenges of life sciences organizations, SAP for Life Sciences empowers you to leverage future-proof solutions and technology that help you successfully meet the requirements of a highly regulated and monitored industry.
List of colleges offering Msc Biotechnology are :
https://www.shiksha.com/search/index?keyword=MSc+Biotechnology&start=0&institute_rows=-1&content_rows=-1&country_id=&city_id=&zone_id=&locality_id=&course_level=&course_type=&min_duration=&max_duration=&search_type=&search_data_type=&sort_type=&from_page=homepage&autosuggest_selected_filters=course_ldb_course_name_facet_$$_&autosuggest_selected_filter_values=MSc_$$_&autosuggestor_suggestion_shown=4
To pursue the right course you need to evaluate this in light of your own future career aspirations. Once you have clarity in terms of the sort of job you would enjoy, you need to analyze for yourself whether you have the qualifications /skills / practical training necessary to be able to get this. If not, then you may want to look at a course that would help you to work towards your objective.
Hope this information helps. Please feel free to revert. Click on the thumbs up or mark it as the best, if you found this useful.
Wish You Luck!