Till now I didn't start my preparation for JEE MAINS how could I get a good result now.Please try  a to give a quick reply.By the way I am from general category.

Hello,

For PwD category, if you score 60% percent of total marks will help you to get a rank below 100. This is because PwD has very low cutoff. If you score 60% then you will obviously come to this range.

If you can do this, you will be eligible for JEE Advance too and if you clear jee advance with good marks then you will get an admission in best IIT with the category.

Hope it helps!