No number of small or medium dams can give us 6.1 million acre feet of water in 5 years time. No other dam can ever trap the flood waters of the five tributaries of the Indus which will continue to wreak havoc in south Punjab and Sindh every year. No other dam can ever give north Punjab and KPK their share of water from the dams on the Indus. No other dam can, in good time, save the people from the threat of water scarcity, food scarcity and food inflation. No other dam can, in good time, increase our very low reserves of 30 days for combating Indian designs on our rivers. No other country with rivers has less than 100 days reserves. No other dam can. ENGR KHURSHID ANWER, Lahore, December 4.