My jee mains 2021, 84.05 percentile and my home town in Andhra Pradesh I am belongs to OBC shall I get seat in NIIT in any branch in any universities....

It depends upon the JEE Main and JEE Advance cut offs, If You manage to qualify the exam by achieving the cut off, You can apply for JOSAA Counselling. It should be noted the cut off for EWS/ SC/ ST/ OBC category is lower than the general category
However It is usually advised to fill the choices as per the preference of colleges and departments, for example CSE in NIT Trichy is your priority followed by CSE in NIT Warangal, you can fill CSE at NIT Trichy at serial number 1 and CSE at NIT Warangal at serial number 2 and so on and so forth. However to get any NIT, you must have qualified JEE Mains and to get any IIT, you must have qualifies JEE Advanced

But the previous cut offs of colleges should be taken in consideration, it is better to research over the cut off of colleges then make a preference list of colleges and fill accordingly

For the college preferences and the courses provided by these colleges and to know which colleges participate in the JOSAA counselling, please go to the below mentioned link: https://engineering.careers360.com/articles/josaa-participating-institutes/amp

Dear student,

It feels sad to inform you that you haven't scored enough in order to get admission in a NIT in any of the branches as your rank would be around 1,65,000- 1,70,000, however here is a list of few colleges that you might get at this percentile are:

• Sant Longowal Institute of Engineering and Technology
• GGU - Guru Ghasidas Vishwavidyalaya
• Tezpur University - TEZU
• GKV - Gurukula Kangri Vishwavidyalaya
• Assam University, Silchar
• Netaji Subhas University of Technology

To know which else colleges you might get, you can use our college predictor tool:

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer