Hi

With 84.4 percentile it is not possible to get into NITs. A minimum of 94 percentile is required to get into NITs in all category. 

Now with your percentile you can get into state or priviate run institutes. For eg

You have very high chance of getting into this colleges.

1. Birla Institute of Technlogy, Mesra

2. PSG college of Technology, Coimbatore

3. SASTRA university, Thanjavur

4.Amity School of Engineering, Noida

5. Army Institute of Technology, Pune

6. Delhi University

7. Heritage Institute of Technology, Kolkata

The list goes on

You can find the entire list in below link

https://engineering.careers360.com/colleges/ranking/top-private-engineering-colleges-in-India-accepting-jee-main-score

Hello.

The final rank list will be released after the completion of the exam in April. This rank will determine your chances of getting into colleges. For general category, this score might not be sufficient to get admission into colleges, it's best that you try to improve your score in the next session of the exam.

Good luck!