KM#41 -- 20 Paise Lotus blossom Complete Set

Details as per standard catalog : 

All mints and all year -- Complete set 

Year : 1968

Year : 1969

Year : 1970

Year : 1971

Reverse of all coins are same as shown below :

Click on any of the images above to have a zoomed view of coin

Note : If anyone has got any more kind of variants in these types of coin kindly share in comment section :)