International Yoga day proof coin set ( 100₹ + 10₹) Minted & Issued by India Government mint mumbai 

1) 100₹  Coin : 35 Grams weight

50% Silver

40% Copper

5% Nickel

5% Zinc

2) 10₹ Coin

outer ring 

92% Copper

6% Aluminium 

2% Nicke

centre piece

75% Copper

25% Nickel

Limited Edition

Best for collectors