In most cases, leaving a 5-year integrated M.Tech program after the B.Tech portion (usually after 4 years) to pursue an M.Tech elsewhere through GATE is not possible.

Integrated programs are designed as a complete package, with the B.Tech portion leading seamlessly into the M.Tech specialization. Exiting after the B.Tech portion might disrupt the curriculum and might not grant you a standalone B.Tech degree.

Universities often have regulations that don't allow students to exit integrated programs midway.

Carefully review the regulations or brochures related to the 5-year integrated M.Tech program at NIT Patna. Look for sections on program structure, exit options, or award of degrees. Reach out to the admissions office or program coordinator at NIT Patna. They can give you the most accurate information about leaving the program after the B.Tech portion.

https://engineering.careers360.com/exams/gate

I hope it helps!