India's first successful surface-to- surface missile is
B
Correct answer
Explanation
Prithvi is India's first successfully developed and tested surface-to-surface short-range ballistic missile (SRBM). It was developed by DRDO under the Integrated Guided Missile Development Program (IGMDP) and first tested in 1988. Agni is a ballistic missile series, Akash is a surface-to-air missile (SAM), and Vayu is not a name of an Indian missile (Vayudeva is a proposed project).