thanks for helping me. It's seems to me the Aporosa lindleyana (Wight) Baill./Aporosa cardiosperma (Gaertn.) Merr. of Euphorbiaceae family. Deatils found in the below link helps me to confirm the plant name. http://florakarnataka.ces.iisc.ernet.in/hjcb2/herbsheet.php?id=1758&cat=1