India and Vietnam signed 12 agreements, signalling a strong upward push in their strategic ties in the field of defence, IT, space, double taxation and sharing white shipping information.PM NarendraModi extended a USD 500 million line of credit to Vietnam to deepen their defence cooperation and signed 12 agreements including a deal to construct offshore patrol boats, in a bid of China’s muscle flexing in the disputed South China Sea and ’emerging regional challenges’.