Based on your JEE Mains percentile of 80.4 in the OBC category from Bihar , let's assess your chances of getting admission to GEC Bikaner (Government Engineering College Bikaner) in different branches.

GEC Bikaner Admission Overview:

• GEC Bikaner offers undergraduate courses (B.Tech) in various branches, including:

  1. Computer Science Engineering (CSE)

  2. Electronics and Communication Engineering (ECE)

  3. Mechanical Engineering

  4. Civil Engineering

     Recommended

  5. Electrical Engineering

  6. Information Technology (IT)

Your Chances:

• 80.4 percentile is a borderline percentile for admission into top branches like CSE and ECE in GEC Bikaner, especially considering the competition and the fact that CSE and ECE tend to close at much lower ranks.

• However, you may still have a chance for admission in lower-demand branches like:

  1. Mechanical Engineering

  2. Civil Engineering

  3. Electrical Engineering

  4. IT (Information Technology)

Considerations:

1. Home State Quota (Bihar) : Since you are from Bihar , you may have an advantage for state quota seats in GEC Bikaner.

2. Category Reservation (OBC) : The OBC category gives you further advantage with reserved seats.

Conclusion:

• CSE/ECE : Highly unlikely at 80.4 percentile , especially for general open seats.

• Mechanical/Civil/IT/Electrical : Possible , depending on your rank and category quota .

You should definitely apply and see if there are any spot rounds or vacant seats in lower branches .