KOCHI: The development works being carried out by the corporation have come to halt after the Kochi Corporation Contractors’ Association (KCCA) decided to stop them in protest against the non-payment of bills amounting to `97 crore.Though the KCCA had announced a strike two months ago in protest against the failure on the part of the civic body to clear the arrears, they have nonetheless been carrying out crucial works, including road maintenance and canal restoration, KCCA members told TNIE.