I want those days back

I Love those days is a set in Delhi (2013-15). This story revolves around three friends their friendship and relationship. Maneet a small-town young boy joins a multinational company in Delhi and meets two colleagues Nimrit and Saksham. Being an introvert person he never imagined he would make new friends in his life. But destiny brought all of them together and they became best friends for life. Nimrit was a bubbly girl and full of a drama queen and the opposite of her Saksham was shy and funny. Maneet was an introvert person and would hardly involve with colleagues even after a big motivational lecture of Nimrit. And one fine day Nimrit got married and engaged in her new journey. Thousands of plans to meet after her marriage could not bring the three of them together. An awful day some terrible thing happened which devastated them. Days passed years passed but still they cannot forget that black day. What happened that day? Why they call it black day in their life?