It's Basanta (2016)

Evocative and eloquent, this multi-layered romantic drama explores the complexities of love. A beautiful young woman loses her mobile phone. When she calls her number, a young man picks up, so she assumes that he must be the thief who stole her phone. However, as they keep communicating, she learns that the young man is actually a talented musician and soon, their relationship blossoms into love.

However, when the young lovers face trouble in their relationship, her boyfriend seeks guidance from a rebellious and youthful senior citizen. The older man narrates his love story to the musician. 'He fell in love with a beautiful woman, who was attending her second year at the women's college. However, due to family and and social restrictions, they were forced to separate.' How will both their love stories evolve? Will the older man find once more? Will the young man's romance end in happily ever after?