Hi Hitesh, there are few open school for both 10th and 12 in Narela delhi. I am sending the link based  on your interest select the board and subject to know open school nearby you as per your subject...

https://www.sulekha.com/open-school-for-10th-classes/narela-delhi

https://www.sulekha.com/open-school-for-12th-classes/narela-delhi

Nios for both 10th and 12th too is a open school