There are many options after 12th standard. 

Some of them are as follows :-

• If you have interest in pure sciences then you can go for BSc in Physics or Chemistry or Microbiology or Biotechnology,etc. After which you can go for MSc then PhD. 
• If you have interest in medical courses then you need to give entrance exam like NEET to get admission in courses like MBBS, BDS, BHMS,etc.
• If you have interest in other field like business related things, finance, accounts then you can go for courses like B. Com
• If you have interest in arts field then you can go for courses like B. A(Bachelor IN Arts) 

If you still have any queries feel free to ask in the comment section down below. 

Hi Janvi...

As per your question, it will depend on you what you want to do. From my Point of view...there are various career line for you because various ways to get your best career....like NEET EXAM PREPARATION for crack NEET UG exam and you will become A Doctor. 

If u want go to in research or industrial area then you should choose biotechnology.

And BSC biology also a option for you.

I think this will help you..

Best of luck for your bright future...

For more information you can send email on jbaghel458@gmail.com