Hello Surya

For 100 marks in JEE advance 2019 your All India Rank for general category will be 30000 to 35000 according to JEE Advanced Marks vs Ranks Trends for the past  4 years.

Now if you are an SC candidate you will be getting admission in a few IITs or in ISM Dhanbad in a few courses.

Please follow Below link and you can predict your college too. Feel free to comment below in case you need further help :)

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