Indian dams on our rivers

After drying out Ravi, Sutlej and Beas rivers, India has depleted Chenab River by building Baglihar dam and is now depleting Jehlum river by building Kishan Ganga dam, in addition to many other dams on all our three rivers. We have only 30 days' storage to meet any contingency. No other country, endowed with rivers, has less than 100 days reserve storage.
Should we not build more reservoirs rather than wait 15 years for Bhasha Dam, by which time Mangla and Tarbela dams will have lost their storage capacity.