You haven't mentioned your  Home State. Your rank can be predicted by using the formula, (100-your total percentile)*869010/100. In your case, your approximate rank would be 156421. At this point in time, it is difficult to predict the JEE Advanced qualifying marks but 85 percentile and above should be an ideal score. You can predict your colleges at: https://engineering.careers360.com/jee-main-college-predictor?