As you must have gone through preventive health-checkups during the year, you can save 1500 rs of income tax easily.
All you need to do is, fill 5000 in 80D section of Income tax filing. You need to fill option (c) Preventive health check-up and you select self/self and family whichever suits you.
If your salary is in 30% income tax slab range, you will save 1500 Rs. And if you are in 20% slab, you will save 1000 Rs.