MMMUT Gorakhpur has a better coding culture compared to IET Lucknow. On campus, you will find many people who actively take part in competitive coding. The alumni of the institute have a good performance record in most of the competitive coding forums. If you are interested in coding, you will get guidance from your seniors.
MMMUT also offers decent facilities and resources to support and encourage the growing coding culture on campus.
Honestly, none of the colleges have a good coding culture like the IITs, IIITs or BITS. To develop a good coding culture, the college must provide some facilities like unlimited internet with a minimum speed of 5 MBPS, lenient attendance rule and no burden of submitting projects and assignments.
In MMM Gorakhpur, the coding culture is also not that great but the CS students here are very talented and sincere with their studies. They are interested in coding classes, but nothing can be compared with the coding cultures of IITs, IIITs and BITS.