India, Feb. 19 -- Indian shares fluctuated before finishing on a flat note Wednesday.

A cautious undertone prevailed as first round of talks between the U.S. and Russia over potential peace deal in Ukraine ended with no clear path and U.S. President Donald Trump said he intends to impose 25 percent tariffs on autos, pharmaceuticals, and chips, aiming to boost U.S. manufacturing and competitiveness.

Rising oil prices also kept investors on edge. Oil prices traded higher for a third day running, supported by prospects of lessened supply following reports of Ukraine's attack on a Russian oil station and cold weather in the U.S.

The benchmark S&P BSE Sensex swung between gains and losses before ending the session down 28.21 points, or 0.04 p...