Problems for the Rivers of Sikkim?

The recent problems with electrical supplies in North and East India (http://www.guardian.co.uk/global-development/poverty-matters/2012/aug/01/india-power-struggle?INTCMP=SRCH) bode badly for the substantial Himalayan rivers that flow through the tiny land-locked state that borders Tibet. There are already numerous planned hydroelectric schemes for this area and the apparently insatiable demand for electricity in the populous areas surrounding the state seem likely to intensify the pressure for such developments. Populations will be displaced and the natures of the downstream rivers and land will be dramatically changed.