With the growing threat of water scarcity in the state capital and suburbs, the Tripura Government has sent a proposal of Rs 665 crore for a project to transport water from the Gumati river, about 70 km away, through pipelines to ensure water supply to an additional 1.5 lakh families in the city. Official sources said here today that a high level committee, headed by Tripura Chief Minister Manik Sarkar, approved the project earlier this week and sent it to the Union Urban Development Ministry for funding under the Jawaharlal Neheru National Urban Renewal Mission (JNNURM).