The 30-share index surged to record intra-day high of 22,363.97 points on buying by foreign funds mainly in banking stocks after RBI extended the deadline for banks to implement BASEL III norms by a year to 2019.
Increased fun flows also pushed the rupee to trade below a crucial 60 level against the US dollar which further strengthened the market sentiment, brokers said.
Later, the barometer closed at 22,339.97 points, up by 125.60 points, or 0.57 per cent, over the previous close.
Both the key indices touched record high levels intra-day in the five sessions till today.
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Brokers said the market remained on a record setting spree this week ever since indications of an improvement in the economic growth and expectations of RBI keeping interest rates on hold in its policy meeting on Tuesday.
They said the FIIs were fancy of Indian equties and remained net buyers, which also raised demand for the rupee.
State-run banks continued to support the rally on interest concerns and RBI extended the deadline for banks to implement Basel III capital rules by a year, they added.
In 30-BSE index components, 19 stocks ended with gains led by SBI, Infosys, Reliance Industries and Tata Power.
The power sector index surged the most by rising 3.02 per cent to 1,734.99 followed by PSU index by 2.17 per cent to 6,363.83.