AGARTALA: Upbeat by the possible reserve of coal in West Tripura’s Tulasikhar area, a far-flung tribal hamlet, local authority of Geological Survey of India (GSI), has sent a report to the Ministry of Coal and Mine, official sources said here on Friday. In the report, the GSI has recommended further study in and around Tuidangkhi, 40 km from Khowai subdivision town.