KARACHI - The dollar continues losing against the rupee , as it has dropped down to the last eighteen months low in the interbank on Tuesday here. Market sources said that the dollar against rupee further losing by paisa 50 pegged at Rs95.70 in the interbank. Analysts said that the rupee started gaining strength after a grant received from the friendly country, loans from the international institutions and successful floating of Euro Bonds. Besides, the speculators have also started offloading dollars with its persistent losing value in the market.