15th - 23rd, INDIPEX 1973 - Complete Set of 9 Special Cover #DL165

15th All India R.K.Kacker Memorial Basketball Tournament 1973 - Set of 4 Special Cover #UP56

1960 Indo-American Society First Annual Stamp Exhibition Academy of Fine Arts Calcutta, Temporary P.O. C-890 Special Cover #WB20

1961 World Meteorological day Special Cover #TNC342

1962 First Philatelic Exhibition Stamp Wing, Indo - American Association Bangalore, (Indian Emblem Cancellation) Karnataka Special Cover #KA1a

1964 2nd Philatelic Exhibition, Stamp Wing Indo-American Association Bangalore (Indian Emblem Cancellation) Karnataka Special Cover #KA2