Hey Nikhil 

It is percentile not marks and percentile is relative score among all other students in your slot.

So when you calculate your approx rank

(100- your percentile) * total number of students / 100

It comes out to be nearly 2.5 lakh ( may vary depending upon exact number and upcoming April exam).with this rank you can not qualify for jee advanced.( According to previous year trends).

So better to prepare for April exam.

Good luck