Old Indian currency notes of ₹50 and ₹5, particularly those issued before 2005 or during the early Mahatma Gandhi Series (1996), are highly collectible. The ₹50 note, introduced in 1975, has evolved from featuring the Lion Capital (Ashoka Pillar) to various Gandhi series designs, while the ₹5 note is famously known for its agrarian “Tractor” design.