With a rank of 140,000 in JEE Main under the OBC category, getting a free seat (i.e., a fully funded or government-subsidized seat) in a top NIT or IIIT is unlikely, especially in popular branches like Computer Science or Electronics.

However, here are some possibilities:

1. NITs and IIITs:

- You might have a chance in newer NITs or IIITs or in less popular branches (like Civil, Mechanical, or Electrical) in some NITs.

- The home state quota can provide some advantage, particularly in NITs closer to your home state.

2. Government Funded Institutes (GFTIs):

- GFTIs typically have higher cutoffs than NITs but may have a chance for you in branches with lower demand.

3. Fee Waivers or Scholarships:

- Some private colleges or lesser-known government colleges offer fee waivers or scholarships based on your JEE Main rank.

Recommendations:

- Participate in counseling: Explore options in the CSAB Special Rounds or state counseling.

- Consider private colleges that offer scholarships based on your JEE Main rank.

JEE mains Rank