Both the S&P BSE benchmark Sensex and CNX Nifty conquered new historic peaks in post-Diwali week on persistent buying on hopes of more reform measures from the Narendra Modi Government.
There were also expectations of better growth in the second half of the current fiscal besides heavy buying by foreign funds.
Strong global rally after Japan unexpectedly expanded its monetary stimulus programme and US economy grew at a robust pace also boosted the domestic market sentiment.
Investors cheered the Modi Government's move to ease FDI rules in construction sector and the US Federal Reserve decision to stick to low interest rate regime.
Brokers said fresh dose of capital inflows, healthy corporate earnings and rating agency Moody's favourable report on rating profile of India also boosted buying as investors bought shares across-the-board.

The Sensex resumed strong at 26,959.57 and continued to move upwards to settle at a new historic high of 27,894.32 before concluding the week at 27,865.83, showing a robust rise of 1,014.78 points, or 3.78 percent, over the last week.
The 30-share index has gained a staggering 1,757.30 points, or 6.73, percent, in the two weeks.
The 50-issue CNX Nifty of NSE also flared up by 307.65 points, or 3.84 percent, to finish at 8,322.20 after hitting a fresh lifetime high of 8,330.75.
"Much-needed reforms from the new Government, strong Q2 performance by India Inc, Fed's low interest rate regime combined with Bank of Japan's sudden stimulus announcement gave the markets a huge boost," said Hiren Dhakan, Associate Fund Manager, Bonanza Portfolio.

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