Dear Nani, Delhi has 5% reservation for Wards of Defense and Ex service personnel. But Delhi has the highest cut offs. In 2018, under State Internal Quota, 567 marks secured a seat in Lady Hardinge under General Category. In this connection, 274 is a very less score for a seat in Delhi Colleges. 

Dear student, considering the previous year cutoffs for defence quota students, 274 marks won't secire a seat in Lady Hardinge Medical College, New Delhi. Moreover, let me tell you that defence quota is only applicable during state quota counselling and not in All India Quota Counselling.