hi tejas,

Tell me qualifications please. If you are thinking of have just passed 12th or about to pass 12th then please complete your Bachelors course first. You will get no/very less paying job if you go for a job hunt just after completing an online course after 12th. During that very less paying job phase you will face a lot of difficulties and you at least have to work for 4-6 years to get into product based company. So I will prefer to get into some 'good'(tier-1) engineering college with CSE/IT/ECE branch, there you specialize in whichever domain you want be it AI/DATA SCIENCE/CRYTOGRAPHY/OPRETING SYSTEM etc. Also you will have many top product bases company lined for you and their you can apply DATA Scientist profile also if you want to.

I hope this answer will help.
All the best for the future!!

Feel free to ask any further query!