Sathasivam Chinnasamy, first of all, no one can predict the rank accurately until the JEE Advanced exam's result is announced on 10th June 2018. Still, according to the previous year data with your 90-100 marks your rank in the SC category can be around 1000-1500. I am again saying to you there is no surety it can vary drastically to any side. For checking out a further rank estimation you can also go through the link mentioned below:

• https://engineering.careers360.com/articles/jee-advanced-rank-predictor

Feel free to ask if you have any more queries. All the best!!