Is the statement is for F.Y.11-12? then there is no other option to save more tax from your end.
For F.Y.12-13 follow the advice of Mr.Vineet.
You can spend more (upto Rs.20K apart from Rs.15000 mentioned above) on u/s 80D if your parents are senior citizen.
if needed, You can avail home loan from any financial institutions or bank for which you can get exemption u/s 24b for payment of interst upto Rs.150k and the principal amount get deduction u/s80C.
As you are a salaried employee, you have the least chance to reduce your tax burden.