The veteran industrialist Ratan Tata's passing has left the entire nation in sadness. Three days after Ratan Tata's passing, his dependable assistant Shantanu Naidu shared an emotional post on social media detailing how hard it has been for him to come to terms with the fact that he will never again be able to see Ratan Tata smiling.

At the age of 86, Ratan Tata passed away late on Wednesday night. His passing has stunned and grieved the entire nation. Ratan Tata's closest friend has always been Shantanu Naidu. He is Tata Trust's youngest manager as well.

The letter was also to thank all those who sent him condolence messages over the last three days. Naidu, who was meeting Ratan Tata for the first time in 2014, shared an Instagram post that showed a Mumbai policeman patting and consoling a teary-eyed Naidu. In one of his posts, Shantanu wrote, "Finally getting a chance to sit down and feel things. Still trying to accept the fact that I will never see him smile again or give him a chance to smile.

Shantanu further wrote in his post, "Over the past 3 days, strangers from across the country have sent so many messages. Reading these, it feels like you and I have been family for years. Every time I thought the grief would end, a message or gesture from one of you would give me a little encouragement."

He elaborated further, saying, "These liberal policemen in Mumbai were so kind-hearted that they embraced the entire city. It sounded like a farewell present. Thank you, and I really mean it."