You Do Need power plug adapter while traveling from Azores to India.

Here is Why You Need An Adapter

The outlet and plug type used in India are C, D and M and in Azores are B, C and F. This is how they look like.

Azores

In Azores, outlets of type B, C and F are in use.

Type B

Type C

Type F

India

In India, outlets of type C, D and M are in use.

Type C

Type D

Type M