Sagar Prahari Bal ( SPB ) meaning Ocean Sentinels , is a unit of the Indian Navy , formed in March 2009 , which is entrusted with the responsibility of patrolling India 's coastal waters . The force consists of 2,000 personnel and is equipped with 80 patrol boats . The force was constituted after the Mumbai terror attacks and the main duty of the force is to guard against such terrorist attacks by patrolling the coastline and also to conduct search and rescue operations . The soldiers are trained at INS Shivaji , a naval training and engineering base , near Lonavla
Mumbai terror attacks
2008 Mumbai attacks
Sagar Prahari Bal