Chris Bode via OfficeKB.com said:
A1:A10 contain date
in C1:C10 add following formula
=MONTH(A1)
in D1

10 add following formula
=SUMIF(C1:C10,MONTH(TODAY()),B1:B10)
Chris
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Some more detail on my question:
Columns A to L represent Jan to Dec months
Based on the current month, Sum of the entries in the corresponding column
are needed in another worksheet which is used every month to project the
details of that month only
The column hence needs to be determined by the current month