IMT Ghaziabad can be considered among the top innovative B-schools in India. One of my cousins is part of the institute and as per him, there is no management quota or backdoor entry for the PGDM course.
The only possible way to enroll at IMT Ghaziabad is to achieve the required scores in CAT, CMAT, and CET.
Earlier in IMT Ghaziabad, there were candidates who neither scored well nor qualified for the entrance criteria. Despite these major drawbacks in their academic backdrop, it was not clear what caused their admission at IMT Ghaziabad. The entry belongs entirely in the hands of the top management system of the institute. It can often play a role, but only infrequently, given the situation.
In fewer words, it may or may not happen because nobody still has a concrete idea. However, it is best that you stay updated with any information that you acquire of this situation and interpret on your own. Hope this helps answer your query, wish you all the best!