Hello aspirant

With 85.2426313 percentile your all India rank will be around 128,243.01  It is calculated by the formula ( 100- your percentile) × number of candidates appeared in January Jee main.÷ 100

In January session 869010 candidates appeared for the exam.

2019 cut off score of Jee main for OBC category was 74.31665571 cut off varies every year. Cutoff depends on number of candidates appeared and qualified in exam, difficulty level of exam, and previous year's cut off.

Seeing to your percentile you are qualified in jee main with your Category but cut off for CS branch is always very high so whether you will be able to get admission in Sharda college in CS branch depends on cut off of 2020 of the college.

You can refer following link

https://engineering.careers360/jee-main-college-predictor