"Hi Nanna" isn't just a film. It's a masterclass in narrative sleight-of-hand.

The entry of Yashna () changes their lives. After a chance encounter where Yashna saves Mahi from an accident, she becomes a bridge between the father and daughter. To satisfy Mahi's longing, Viraj begins to recount his past, leading into a lush, emotional flashback set in Coonoor, where he first met and fell in love with a woman named Varsha. Thematic Depth and Emotional Resonance

Nanna loved small, unexpected things: a coin found under a garden stone, the hush of snow on a rooftop at dawn, a single firefly trapped, briefly, in the palm of her hand. She collected those moments in a little tin box on her windowsill, labeled with a scrawl only she could read.