Zuari Cement is to make a lump-sum payment to Larsen and Toubro to settle unpaid bills and thereby to end a dispute with the engineering major. Zuari is a subsidiary of Italian cement major Italcementi Group.Sources said that L&T had last month filed for arbitration proceedings against the cement maker to claim Rs 188.5 crore in unpaid bills and payment delays. L&T alleged that Zuari failed to pay Rs 31.53 crore it owed to the engineering company for the construction of a 5,500 tonne per day capacity cement plant at Yerraguntla in Andhra Pradesh.L&T claimed the rest of the amount as a penalty for payment delay and for encashing a performance guarantee. Shashank Garg, partner at Advani and Company, the law firm that represented L&T said that it is the commercial maturity of the two parties that has led to this settlement.