The BSE's index calculation system suffered a technical glitch for about 20 minutes in the morning today.
The benchmark Sensex opened blank when trading started at 9:15 am due to a fault in the calculation system, which was restored at about 9:35 am.
Initial data for the Sensex was not available due to the glitch.
"The index calculation system, which is separate from trading system, faced a technical issue in the morning. It has been resolved now. The trading system has been working normally since start of trading," the BSE said in a statement.
