Tushar Kanta Das, a 47-year-old man from Bhubaneswar, is now popular as the 'pen man'. He developed this keen interest of collecting pens when he was in Class X. And now, 3 decades later, he owns a pen library at his home which has a collection of over 4,000 pens. The price of the pens ranges from Rs 5 to Rs 5000. Das aims to increase his collection to 10,000 pens by the coming Fountain Pen Day of 2024.