Hello

Congratulations for you result.

Your percentile is 92 It means 92% student of the total student appeared for the exam are behind you which means that 8% students of the total students appeared for the exam are Ahead of You, Therefore your  general rank is 69957(approx).

I guess OBC rank depends upon the number of students applied under the obc category which can't be predicted unless you know the number of students applied.

Hope it helps!

All the best!