Yes, you are surely eligible for JEE Advance. Only criteria for JEE Advance is you can appear it back to back only for 2 years and you should have a minimum 75% in 12th. As you have never ever attempted JEE Advance earlier you will be eligible.

I will suggest

Hii Rajat, you do have a good chance of qualifying for JEE advanced. The students who secure a rank in the top 224000 students qualify for JEE advanced. After seeing the analysis of various experts and top coaching institutes the predicted cutoff range for this year's JEE mains is 75-78

Hey aspirant.

See right now it is not clear that how much marks is required to qualify the JEE ADVANCED paper as the cut off score is decided after the students performance and the level of questions paper made.

U should be focussing to get the 65-70% of the questions

Hey  Jaya.

See if u have done only one month preparation then I m sorry to say that u will never ever get that percentage because JEE ADVANCED need a huge practice of the mind and time management.

U should be solving the unsolved papers for ur best results as

Thats a really good score. Actually the questions in test series are relatively more difficult than the questions in examination. So there are chances that you can score even better than this, but the only thing is to have patience in exam hall. 

Now, you should start practising previous year

Hello shailesh

As within this percentile score your approximately rank will be more than 2.5 lakhs general ( will vary depending upon April exam and other factors) and nearly 2.2 lakhs total students will qualify for jee adavanced. And nearly 17-18 thousand ST students are in those 2.2 lakhs.

So

Hello dear, 

According to your percentile in jee mains your general rank will be above 4.5 lakh(not in merit list).As you belong to ST category there still may be chance of qualifying jee mains if your luck favours but the chances are very less. 

Hello Aman 

See ur rank in mains paper 2 is too low for u to bag a seat in the good colleges like NITs , IIITs to pursue ur higher studies in the field of ur interest under barch courses. U should be heading towards private Institutions for ur barch