** Shares of India's Travel Food Services TAVE.NS fall 1% in trading debut to 1,087 rupees as of 10:28 a.m. IST; stock gives up pre-open gains
** Co notches valuation of $1.67 bln rupees
** Analysts say subdued listing in a weak market, sentiments influenced by uncertainties over India's trade negotiations with the U.S.
** Benchmark Nifty 50 index .NSEI edges 0.15% lower .BO
** Offering comprised on only offer for sale, with co's largest shareholder - the Kapur Family Trust - offloading a stake worth 20 billion rupees, or 13.81%, at the top end of the price band
(Reporting by Hritam Mukherjee in Bengaluru)
((Hritam.Mukherjee@thomsonreuters.com;))