I Came Upon a Lighthouse by Shantanu Naidu and Sanjana Desai

I Came Upon a Lighthouse is a memoir by Shantanu Naidu that offers a warm, personal portrait of Ratan Tata — not just as a business icon, but as a mentor and friend.

The book begins from a shared concern for stray dogs: Shantanu, as a young design engineer, invents a safety-collar for homeless dogs to prevent them being run over by speeding cars, and this catches Tata’s attention.

Impressed by Shantanu’s compassion, Ratan Tata becomes more than just an investor — he becomes a mentor, a guide, and an unexpectedly close friend.

Through the chapters, Shantanu recounts their adventures, conversations, and moments that reveal the “colours and shades” of Tata’s personality that are not often in the public eye: beyond business, beyond leadership.

The tone is honest and light‑hearted, blending inspiration, humility, and genuine warmth.

It’s also illustrated, with drawings by Sanjana Desai, adding visual charm to the narrative