In a post shared by 'Humans of Bombay' on Wednesday, Mumbai-based 27-year-old Shantanu Naidu said Tata Sons Chairman Emeritus Ratan Tata called him and asked him, "Would you like to be my assistant?" In 2014, Naidu and his friends made a collar to protect dogs from being hit by vehicles. Tata met him after he wrote to him about it.