SGPEX 1976 - U.S.I.S. Auditorium Calcutta Special Cover #WB66

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2003 Rurapex - 1000 Peace for all Special Cover (26.01.2003) #SC-96

2018 India Post Payments Bank Special Cover (01.09.2018) #SC-95

2003 RURAPEX 1000 Plant Many Plants Special Cover (27.01.2003) #SC-93

2011 World Philatelic Exhibition - Environment Day Special Cover (17.02.2011) #SC-92