Hello Manoj,

I can help you better if you share your JEE Main Percentile here. Now it would be difficult to tell you the qualifying score of JEE Advance as JEE Main is being conducted twice by NTA for the first time.

You can also prefer the previous year cutoff of JEE Main with the given below link.

https://engineering.careers360.com/articles/jee-main-cutoff

If your JEE Main rank is 1.5 Lakh then as you know that this is not a good score & you can not expect NITs, IIITs, GFTIs or any other decent college. So I would suggest you to focus on BITSAT & try to score well in the exam. You can follow the preparation tips given below:

BITSAT is a online test it is recommended, You must attempt maximum amount of questions and your efficiency also must be good. A lot of practice is required for this.

English Proficiency, this part is slightly tough but you can easily get away with it if you attempt model paper and see pattern of questions asked in exams. I would also suggest you to focus on the most frequently asked questions in the exam.

You can prefer a personalized Preparation course BITSAT 2019 Knock Out It will be helpful for you to prepare the exam smartly with Unlimited Online Mock test, 5,000+ Concepts, formulas and Definitions, Most asked questions, personalized strength and weakness sheet to analyse yourself and more.

Good Luck!

hello!

If you rank is around 1.5 lakhs then just focus on advance paper because if you are general or obc category then you will get nothing at this rank. 

Another choice is do well in jee mains april paper.

All the best!