Is providing father's details is must for child admission in school of single mother

I am a single mother, I was married in 2010 and got divorced as per regular cultural rituals in village in 2015, I have a son of 11 year old now..it's been 7 years from now, there is no contact or anything, I have not taken any financial support or anything from the men side... I am basically a Teacher, so my son was studying in the same school I was working wherever, so I had no questions about father details so on in admission form.. Adhaar also I have made for the child with my name and initial only. But now while taking admission in other schools they demand for father's details and photography. Or they need NOC from father, it's like I purposely go and give my address to him and put my life in threat again. I have been teaching grade 12 for past 14 years, As a class teacher when I make my students also fill exam hall tickets details, I have counselled many students who were single parent, not willing to give that privileged to another parent who has no part in their growth or education... So personally I use to think very bad about it. Now when I am facing the same, it hurts a lot. Doing a noble profession, taking all the pain to take care of the child , still should suffer this disrespect as a victim. Is there a possibility that single mothers can go for admission without father's details and ready to take sole responsibility in future what so ever. Kindly guide