Spotting

Nice so definitely is Lamiaceae, just not the Lamium genus.

Welcome @DipikaKalariya ...

thanks a lot for ID suggestion Arun..

A medicinal plant named Thumbai (தும்பை) in Tamil ....

Ya Elisa..but flowers are also quite different from Lamium album and ya leaves n whole inflorescence is also differ from it..may be another species..i have searched about other species of this genus but i couldnt get any information for this one..:(

Reminds me of White Dead-Nettle (Lamium album) but the leaves are slightly different.