It is a raag to depict the emotion - 'Virah' ideally means emptiness after separation
This link is taken from series - Bandish Bandits
If you have not seen it before {spoiler alert}!
Two lovers get separated because boy doesn't have anything substantial (ofcourse!). She gets arranged married in a family of revered singer. He never marries.
Final is music fight between two gharanas between OG boyfriend and lady's son. And the boyfriend sings this damn song!
"Apne jee se prem rang kaise main utar du"
"Pal bhar tu dekh mujhe, zindagi gujar du"
Heard it after very long, thought should share here