BUZZ-Indian shares fall on US tariff woes; metals drop as global prices retreat

** Nifty 50 .NSEI, BSE Sensex .BSESN lose 0.7% and 0.6%, respectively; set for fourth session of losses

** Donald Trump will allow bipartisan bill targeting countries doing business with Russia, including buyers of its energy exports, to move forward in Congress, says Republican Senator Lindsey Graham

** Earlier, Trump warned India of higher tariffs over its Russian oil purchases

** "The uncertainty over tariffs has been on rise and markets are not comfortable with that," says Anita Gandhi, head of institutional business at Arihant Capital Markets

** All 16 major sectors slide; mid-caps .NIFMDCP100, small-caps .NIFSMCP100 fall ~1.6% each

** Metals .NIFTYMET shed 3.5% as rally in base metal prices loses steam

** IT stocks .NIFTYIT down 1.6%; U.S.-reliant textile, seafood exporters down


(Reporting by Vivek Kumar M)

((VivekKumar.M@thomsonreuters.com;))