आई. एन. एस. दुनागिरी, शोधक, अग्रेः नौसेना 3 स्वदेशी युद्धपोतों और सर्वेक्षण पोत को चालू करेगी

India's maritime strength is set to surge as PM Modi commissions three new indigenous warships in Kolkata on June 21. INS Dunagiri, a stealth frigate, INS Sanshodhak, a survey vessel, and INS Agray, an anti-submarine warfare craft, will bol