MAHANANDA

A THREAT: MAHANANDA CONTAMINATION

Nidhu Bhusan Das

Mahananda, the daughter of Darjeeling Himalayas is under threat. Human
settlements, cattle sheds on the river bed, human and cattle excrements, remains of funeral pyres, carcasses, sewage of towns are serious threat to the rainfed river. One expert in a recent seminar organized by Save Mahananda Committee at Siliguri presented alarming data about the presence of contaminants in the Mahananda river along the stretch in Siliguri sub-division.He said two-thirds of the water along the stretch are liquid pollutants. A large amount of the sewage of the burgeoning Siliguri Corporation is emptied into the river which bifurcates the town and is it’s main source of water. If immediate steps are not taken to bring back the health of the river, he said, people of Siliguri and contiguous area will be amenable to different serious water borne diseases.

Mahananda has her origin inChimli,Kurseong. She in her course of descent from the hills runs through a subterranean area and comes into sight after a journey of four miles. She alters her route at Siliguri and enters adjacent Jalpaiguri district.She has a catchment area of more than 25,000 sq km.She has three tributaries-Trinai, Ranochondi and the Chokor-Dauk pair. In her downhill course Balasun also joined the Mahananda system.The river gains international status entering Bangladesh. She flows through North Bengal, Bihar and Banladesh,re-enters India at Malda and turns again to Bangladesh to join the Ganges which is rechristened as Padma. Siliguri and Malda are two important urban settlements on the bank of the river.

The river in its Siliguri stretch remains a lean channel with little water flowing most of the year except during the monsoon.The bed has risen over the years with tons of boulders and pebbles rushing downhill with rain water and depositing along the stretch.The rate of siltation has increased with two more bridges built on the river between Airview More and Naukaghat,two points within a crow’s flight.