I'm not entirely sure about the exact ending of Ishq Mein Marjawan 2 as it can be quite complex and full of twists. However, generally, it might involve the resolution of the main characters' relationships. Maybe the lovers finally get together after facing numerous obstacles throughout the series.
I'm not sure exactly what the ending of 'ishq mein marjawan' is as I haven't watched it fully. But generally, in such shows, it could end with the main couple getting married and living happily ever after. Maybe they overcome all the obstacles like family differences or some villain's plots.
It's hard to say. You might need to do some research or look for reviews and comments from people who are familiar with it to find out if it's based on a novel.
I'm not entirely sure as I haven't specifically read or known the exact 'ru baru ishq tha' story. It could be a story with a happy ending where the characters finally get together and their love triumphs over all the obstacles.