About the Book I told him that when I write a book, I would write about another side of him and not just historic events or business milestones. I would write about us and our adventures together, and how I saw him, colours and shades of him unknown to the world. Life beyond the great steel wall of 'industry doyen'.

He agreed. There cannot be one book that captures everything... So you do your thing, give your perspective.'

It was their shared empathy for homeless dogs that sparked an unlikely friendship. In 2014, Shantanu Naidu, an automobile design engineer in his early twenties, developed an innovation to save the local strays from being run over by speeding cars. Ratan Tata, himself known for his compassion for stray dogs, took note. Impressed, he not only decided to invest in the venture but over the years became a mentor, boss and an unexpectedly dear friend to Shantanu.

About the Author FROM COMPOSING MUSIC VIDEOS for social causes during his engineering days, Shantanu Naidu went on to establish himself in animal welfare with his video 'Paws for a cause', which was his entry into the space. During his time as automotive design engineer at Tata Elxsi, he founded a start-up, Motopaws, to put reflective collars on India's stray dogs to prevent night- time road accidents. Mr Ratan Tata became a primary investor in the venture..

After Shantanu's return to India from his MBA at Cornell. University in Ithaca, New York, where he spent time diving deep into entrepreneurship, he joined Mr Tata's office as Deputy General Manager, assisting him with day-to-day activities, including philanthropic initiatives, start-up proposals and social media.

During his time at Mr Tata's office, Shantanu found a huge gap in young students' understanding and fear of entrepreneurship and founded On Your Sparks', an online entrepreneurship course teaching fundamentals through stories, the proceeds of which are used for animal welfare. He has also founded the 'Cyber Aid Army', which helps victims of cybercrime technologically and through counselling, free of charge.

I Came Upon a Lighthouse is an honest, light-hearted telling of this uncommon bond between a millennial and an octogenarian that gives glimpses of a beloved Indian icon in a warm light.

Introduction THE PAGES OF THIS book are the result more of heart and story and less of artistic capability. It is my honest narration of what some of you might see as adventures, others as essays, and even more of you as a running journal, and all of you would be right.

Many of you will turn these pages to know about Mr Ratan Tata. And while I wish I could have done only that--to fully understand him from how I see him-this is a short memoir of my life where it overlaps his.