Hello Suvendu Karen. Thanks for contacting Careers360 and we hope we will be able to answer your query. 

There are more than a lakh of students who end up getting marks less than 100 in JEE Mains. But, there is no need to worry, since there are many colleges, reputed ones, in India that do not accept JEE Mains scores.

For a complete list of such exams you can write, I would like to direct your attention to this Careers360 article:

• https://engineering.careers360.com/articles/what-if-i-have-not-secured-100-marks-in-jee-main-2016?amp

Also, see if this helps you:

• https://gradeup.co/see-your-options-if-jee-main-score-is-below-100-i-f19d86f7-41a9-11e6-8309-99aa6a2188b3_amp

All the best!