Give Current Affairs Test Online of 24 April 2019. You will learn about The Indian Navy has propelled guided rocket destroyer INS Imphal at Mazagon Dock Shipbuilders in Mumbai on April 20. It's the third best in class warship worked as a component of Project 15B, in which ships are worked to convey and work two various job helicopters. INS Imphal has a length of 163m and 17.4m at the pillar and a dislodging of 7.300 tons, which are pushed by four gas turbines to accomplish speeds more than 30 ties. Under Project 15B, the Navy had propelled first ship 'INS Vishakhapatnam' in April 2015, while the second ship 'INS Mormugao' was propelled in September 2016.