The Sensex closed 173.78 points or 0.45 per cent lower at 38,557.04 while the Nifty settled at 11,498.90, down by 57 points.
"Consolidation continued as weak auto sales have dimmed growth expectations while surge in oil prices further impacted the sentiment," said Vinod Nair, Head of Research, Geojit Financial Services.
The focus remains on the earnings season where the preliminary subdued results in IT stocks have triggered gradual downgrade in earnings expectations, he added.
Meanwhile, as the higher surcharge on the super-rich, announced in the Budget, roiled the markets as it could affect foreign portfolio investors (FPIs), Finance Minister Nirmala Sitharaman defended the move in Parliament.
Central Board of Direct Taxation Chairman P.C. Mody, however, said that FPIs and alternative investment funds can opt for a corporate structure to avoid paying the additional surcharge.
Besides, investors reacted to the brewing trade tension between the US and India as US President Donald Trump, for the second time, on Tuesday said that India's tariffs on American products was "no longer acceptable!"
Shares of IndiGo closed over 10 per cent lower before declining as much as 17 per cent on the BSE as the dispute between its promoters came out in the open.
Airline co-promoter Rakesh Gangwal, in his letter to market regulator Securities and Exchan ge Board of India (Sebi) Chairman Ajay Tyagi and other top officials, lamented that IndiGo has started veering off from the core principles and values of governance and sought regulatory intervention from Sebi to resolve the issues.
SpiceJet, Indigo's competitor, gained over 2 per cent to end Rs 119.60 apiece.
Tata Motors fell 2.66 percent lower at Rs 151.65 as Jaguar Land Rover sales fell 9.6 percent on a yearly basis to 47,060 units.
IT major TCS, which declared its quarterly results on Tuesday, ended 1.11 per cent lower, at Rs 2,107.70 apiece as it missed street estimates.
"Most Southeast Asian stock markets rose on Wednesday, as market participants counted on US Federal Reserve Chairman Jerome Powell to stay accommodative in his congressional testimony later in the day," said Deepak Jasani of HDFC Securities.
( With inputs from IANS )