2. Land forms of TamilNadu
3. Western Ghats in Tamil Nadu
4. Inselbergs of Madurai
5. Evaluation of the Interactions of Outgoing Long wave Radiation with Vegetaiton, non-vegetated and snow covered areas of India
6. GIS - A Technology to Unify
7. Moon Quakes
8. Lunar Caves
9. Lunar Sea
10 .நிலவில் மனிதன் கால் வைக்க காரணம்