The weakness remained for the third session as the 30-share index fell 88.32 points, or 0.30 per cent, to 29,373.13. Much of the softness came from metal, IT, FMCG, technology and auto.
The gauge had lost 326.90 points in the previous two sessions.
Also, the NSE Nifty dropped 21.25 points, or 0.23 per cent, to 9,129.55.
Asian shares showed a weak trend after geo-political muscle-flexing over Syria, Afghanistan and the Korean Peninsula, which weighed on sentiment.
The market was shut on Friday for Ambedkar Jayanti and Good Friday.