Notable aspects of the Indian stock market today include the Sensex up 313 points and the Nifty exceeding 25,300.

On September 17, benchmark indices ended the day higher, with the Sensex up 313.02 points and the Nifty at 25,330.25. HDFC Life and Tata Steel trailed behind Tata Consumer and SBI, which were the biggest winners. The sector's performance was mixed, with PSU and auto banks seeing gains.

On September 17, benchmark indices concluded the day on a high note, with the Nifty regaining the 25,300 mark. The Nifty gained 91.15 points, or 0.36 percent, to close at 25,330.25, while the Sensex closed 313.02 points higher, or 0.38 percent, at 82,693.71.

As the total market capitalization of companies listed on the BSE increased to over ₹464 lakh crore from ₹463 lakh crore in the previous session, investors made over ₹1 lakh crore in a single day.

1. What caused today's increase in the Indian stock market?
As trade negotiations between the US and India restarted and US Trade Representative for South Asia Brendan Lynch traveled to New Delhi to discuss a possible deal, market sentiment strengthened. Investor optimism was bolstered by expectations of a 25 basis point rate decrease by the US Federal Reserve on September 17. The market rise was further supported by a stronger rupee and a declining dollar.

"With the help of initiatives to improve bilateral relations and the resurgence of trade negotiations between the US and India, Indian stocks continued their upward trajectory. While international markets moved carefully in anticipation of the US Fed's FOMC decision, a steady INR boosted investor confidence. Expectations of a rate cut and better macro fundamentals helped keep domestic stocks in a risk-on mood. According to Vinod Nair, Head of Research at Geojit Investments Limited, "strong domestic inflows, currency stability, and favorable geopolitical dynamics continue to create a constructive near-term outlook for the market."

2. Today's top Nifty 50 index gainers
Up to 20 firms in the Nifty 50 index ended the day higher, with Tata Consumer (up 3.99%), SBI (up 3.05%), and Bharat Electronics (up 2.21%) being the top gainers.

3. The Nifty 50 index's top losers
The index's biggest losers were HDFC Life (down 1.08 percent), Bajaj Finserv (down 0.98 percent), and Titan (down 0.91 percent).

4. Sectoral indices today
Today's sectoral indicators showed mixed results. Automotive, PSU banks, IT, and oil and gas reported increases of 0.5–2.6 percent, while FMCG, consumer durables, telecom, and metal ended lower.

The Financial Services index finished 0.26 percent higher, while Nifty Bank increased 0.63 percent.

5. Most active stocks by volume
The NSE's most active stocks by volume were Urban Company (19.60 crore shares), KNR Construction (6.90 crore), Redington (5.95 crore shares), and Bharat Electronics (2.76 crore shares).

6. Six equities on the NSE rise more than 5%.
On the NSE, up to 12 stocks, including DCM Shriram, Garden Reach, Elgi Equipments, and IFCI, increased by more than 5%.

7. The ratio of advance to decrease
1,764 of the 3,177 stocks that were traded on the NSE saw gains, while 1,315 saw losses. About 98 stocks didn't change.

8. Eighty-four stocks reached 52-week peaks
During intraday trading on the BSE, 155 equities, including Maruti Suzuki India, Hyundai Motor, JSW Steel, and L&T Fiannce, reached their 52-week highs.

9. Twenty-four stocks fell 52 weeks.
In intraday trading on the NSE, up to 24 stocks, including Cedaar Textile, Anik Industries, and Smarten Power Systems, fell to their 52-week lows.