Tadvai is a village and mandal headquarters in Jayashankar district, Telangana, India.

[1] Recently it changed its name into "Sammakka Saralamma Tadvai" .

There is a megalithic dolmen graves site in the forest near Tadvai which was identified And by the archaeology department.

There are 12 village panchayats in Tadvai mandal.

[2]