new delhi the jitters in equity markets which saw a flash crash on the street on friday kept the investors nervy as sensex and nifty saw heavy losses on mondaythe 30share bse sensex gained 83 points at the opening bell to start trading at 3692472 but investor sentiments soon turned negative as the gauge kept sinking and was down more than 600 points and testing the 36250mark at 207 pm the broader 50share nse nifty was down 187 points having slipped below the 11000markboth the indices were down to the tune of 125 per centearlier before the markets opened finance minister arun jaitley sought to soothe the volatility in the markets by assuring the government will ensure liquidity in nonbanking finance companies nbfcs and mutual funds on friday stocks forex and bonds markets turned volatile on worries over liquidity concerns as a series of defaults from infrastructure leasing financial services ilfs spooked investors in mondays trading all sectors with the exception of nifty it the financial service subindex was down 330 per cent while the auto subindex was losing nearly 4 per centthere are liquidity concerns financial stocks led the rally and now they are dragging the markets and it has a domino effect on sectors such as real estate and autos said ak prabhakar head of research at idbi capitalbrokers said market sentiment remained weak in the absence of any encouraging factor and fresh weakness in the rupee coupled with rising global crude oil prices which again went past the 79 per barrel markthe rupee depreciated 29 paise to 7249 against the us dollar at the interbank forex marketglobal cues were also hit as us and china imposed fresh tariffs on each others imports and called off trade talkswith agency inputs