In the wake of landslides in Sikkim, the Congress on Wednesday hit out at the government and said hydel projects in ecologically fragile regions have been coming up over the past few years without giving adequate thought to their cumulative environmental impact. The opposition party also asserted that dams on the Teesta river are the prime example of how ecology is being fundamentally altered with grave consequences for this and future generations. A massive landslide struck east Sikkim on Tuesday, damaging parts of a 510-mw hydroelectric project on the Teesta river. The landslide happened at Dipu Dara near Singtam in Gangtok district around 7.30 am, causing significant damage to the powerhouse of the Teesta Stage V hydroelectric project of the NHPC. In a statement, Congress general secretary in-charge communications Jairam Ramesh said a series of landslide disasters in Sikkim has substantially damaged the Teesta V, a 510 MW hydel power station on the Teesta. This disaster comes o