Sir: It is very unfortunate that the Indus delta — the sixth largest in the world — is on the verge of dying out due to man-made problems for the last many years. It was envisaged in the 1991 Water Accord that mandatory limited water was to be released downstream Kotri till a survey was conducted to fix the exact quantity of water to be released. However, sorry to say but despite the passing of 23 years after signing the Accord, it is still not being implemented in letter and spirit due to the intransigence of Punjab. Consequently, 2.6 million human beings living in the area between Kotri and the Arabian Sea are miserably facing hunger and thirst. It is very unfortunate that lack of badly required water downstream Kotri has resulted in the destruction of the Indus delta, intrusion of sea water inundating 2.7 million acres of fertile land in Badin and Thatta districts of Sindh and the bringing of an environmental disaster to the area. These are major problems that the people of Sindh are facing nowadays. Obviously, the federal government is unable to save the Indus delta, perhaps because it is not in Punjab. It is very sad that some people within the ministry of water and power, IRSA and WAPDA want to turn Sindh completely into a desert by not implementing the accord in letter and spirit, including the release of mandatory limited water downstream Kotri. MOHAMMAD KHAN SIAL Karachi