What is Makar-class survey catamaran?

The Makar-class survey catamarans are a series of six 500 ton steel hull/aluminium superstructure Hydrographic Survey Catamarans being built by Alcock Ashdown Ltd at its Bhavnagar shipyard for the Indian Navy. The ships are designed by an Australian naval architecture firm Sea Transport Solutions, which is based on Queensland's Gold Coast. The deal is likely to be canceled due to the delays as the Navy is not satisfied with the timeline and a fresh award for construction of another class of survey vessels to the GRSE has also been undertaken.