New Delhi, Feb. 12 -- The government has invited bids for marine geotechnical investigation work for a greenfield international airport at Chingenh, one of the so-called pre-tsunami villages on Great Nicobar Island, according to documents seen by HT. HT reported on January 23 that tribal council members say they were asked to give up claims to some villages -- a request they are not keen to accede to. P7...