In a written reply to the Rajya Sabha, Minister of State for Water Resources Vincent H Pala said, "There is no evidence that Brahmaputra river had dried up in the state recently. Central Water Commission (CWC) maintains river water level and discharge data at Tuting in Upper Siang district near the border to the Tibet Autonomous Region, China."
He was asked whether the Arunachal Pradesh government has expressed its apprehension that China had diverted water of Brahmaputra river which had dried up in the state recently.
"The analysis of Siang River flows at Tuting undertaken by CWC for January and February months of preceding years (2007-2011) shows that the average monthly flows in Jan/Feb 2012 are at least 50 to 100 per cent higher than the corresponding average monthly flows during the previous years," Pala said.
He added that the government keeps a constant watch on all developments in the region having a bearing on India's interest and takes necessary measures to protect them.
"In Oct 2011, Vice Minister of Chinese Ministry of Water Resources also stated that the Chinese government has no plans to conduct any diversification project of Yarlung Zangbo/Brahmaputra River," Pala said.
The government has ascertained that construction activity on Brahmaputra river at Zangmu on Chinese side is Run of the River hydro electric project, which does not store water and will not adversely impact the downstream areas in India, he said.