Hello
Hope you are doing well
There are many colleges in India that offer defence qouta in admissions , almost all the colleges offer this qouta
Some of the good ones which offer defense qouta are :
Delhi College of Engineering (DCE) or DTU, which has 10 % quota which is generally for children or/ and widows of personnel of Armed/Para-Military forces with highest priority.
2. IP University (Indraprasth University), Delhi

For more information visit the link given below
https://www.careers360.com/question-which-engineering-colleges-have-quota-for-defence-and-para-military-services