Question

some features of nagara and Dravida styles of temples

Answer 1

It is not possible to give such a detailed description but I hope you will find this answer useful.
Nagara style of architecture is associated with the land between the Himalayas and Vindhyas .
Dravida style of architecture is associated with the land between the Vindhyas and the Krishna river.
Nagara belongs to the Gupta period(in North India).
Dravida belongs to the period of Cholas,Cheras,Kakatiyas,Pandyas,Pallavas,
Rashtrakutas,Chalukyas,etc.
THAT'S ALL.