HCLTech, HDFC Bank, HFCL among buzzing stocks as SENSEX falls nearly 300 pts; NIFTY trades below 23,300

While the markets opened in the green zone, they slipped into the red zone, with the SENSEX tumbling as much as 0.35% to hit an intraday low of 74,518.68. Meanwhile, the NIFTY50 declined as much as 0.5% to touch the session’s low of 23,288.45.

At 1:20 PM, the S&P BSE SENSEX fell by 252.91 points, or 0.34%, to trade at 74,528.85, while NSE’s NIFTY50 stood at 23,295.35, marking a 102.75-point, or 0.44%, drop.

On Friday, the foreign institutional investors (FIIs) sold shares worth ₹930.90 crore, while the domestic institutional investors (DIIs) purchased equities worth ₹1,968.17 crore on a net basis, according to exchange data.

Furthermore, India VIX, the volatility index, surged over 5% during the trading session on September 15.

The top losers in the NIFTY50 index included Shriram Finance, Bharat Electronics Ltd (BEL), Adani Enterprises, Grasim Industries and Titan Company.

Conversely, the top gainers included HCL Technologies, Tata Consultancy Services (TCS), Infosys, Tech Mahindra and Tata Motors PV.

Buzzing stocks on September 15: Check list

Indian IT sector stocks traded with impressive gains in the early trade, with the NIFTY IT index surging over 5%, on Tuesday, September 15, after the head of AI company Anthropic has called for the pace of development of artificial intelligence (AI) models to slow down and to be closely monitored.

Dario Amodei wrote in an online essay that developing AI was not in question, but that the risks associated with it were "serious" and that companies and governments must be given time to address them.

The bosses of two rival AI firms, Sam Altman of OpenAI and Elon Musk, have both said they agree with Amodei.

Shares of the Tata Group companies such as Tata Consultancy Services (TCS), Tata Motors Passenger Vehicle, Indian Hotels Company, Tata Power, Tata Consumer Products, Tata Steel and Voltas among others surged in trade on Tuesday, September 15.

These shares came under buying interest on expectations of value unlocking after the Reserve Bank of India (RBI) rejected Tata Sons' application to ‌de-register as a non-banking finance company (NBFC), reviving prospects of a stock market listing for the holding firm.

The RBI rejected Tata Sons' application to surrender its core investment company registration under the RBI rules for NBFCs, killing the Tata Group holding company's attempt to avoid a mandatory stock-market listing and setting the stage for it to become publicly traded, news agency Press Trust of India (PTI) reported, citing sources on Saturday.

A public listing would mark a fundamental change for the holding company of one of India's oldest and largest business groups. Tata Sons owns significant stakes in listed and unlisted Tata companies spanning information technology, automobiles, steel, consumer products, aviation, hospitality and financial services, the _PTI report added.

Shares of solar manufacturers or exporters with meaningful US exposure, such as Waaree Energies, Premier Energies and Vikram Solar, were trafing in the red zone on Tuesday as the US has finalised high anti-dumping and countervailing duties on the import of solar cells and panels from India and two other countries, contending that producers and exporters benefited from unfair government subsidies and harmed American industry.

The US Department of Commerce, on Friday, announced its final affirmative determinations in the antidumping duty (AD) and countervailing duty (CVD) investigations of crystalline silicon photovoltaic cells from India, Indonesia, and Laos.

Solar Industries India shares were highly volatile in the early trade on the National Stock Exchange (NSE) on Tuesday, September 15. The stock, in the opening deals, zoomed to hit a 52-week high level of ₹22,700 against the previous close of ₹22,290 on the NSE, before falling 13%.

The shares were in focus as the company on Monday said it would acquire South Africa-based Omnia Holdings Ltd in an all-cash transaction for a consideration of approximately $1.355 billion (₹12,951 crore).

Solar Industries’ wholly owned step-down subsidiary Solar SA Investments Proprietary announced the signing of definitive agreements under which Solar SA Investments Proprietary Ltd (Solar SA) will acquire all outstanding shares of Omnia in an all-cash transaction.

Shares of Emami Ltd rallied as much as 5.18% to hit an intraday high of ₹382.65 per unit, after the company said its board will meet on September 17 to consider a proposal for the buyback of its fully paid-up equity shares.

The board will also consider matters related or incidental to the proposed share repurchase in accordance with applicable provisions of the Companies Act and SEBI’s buyback regulations.

The company will disclose the outcome of the meeting to the stock exchanges after the board meeting.

The stock of HDFC Bank soared as much as 3.18% to hit an intraday high of ₹730.75 per equity share on the NSE, as it sent two names of prospective successors for the position of Managing Director and Chief Executive Officer (MD & CEO) to the Reserve Bank of India (RBI).

According to a regulatory filing dated September 12, the bank said that it has submitted the names of two candidates “in order of preference and the remuneration proposed to be paid to them” for the position of MD & CEO, for a period of three years, to the RBI.

This comes a fortnight after HDFC Bank’s incumbent MD & CEO Sashidhar Jagdishan conveyed his decision to the board not to seek reappointment to the top post.

HCL Technologies shares jumped as much as 7% to touch the session’s peak of ₹1,290 apiece on Tuesday, after the company extended its partnership with CrowdStrike.

The partnership expansion is aimed at advancing AI security and resilience by integrating CrowdStrike Falcon® Guardian with HCLTech’s AI Security and Resilience services.

HCLTech said in a regulatory filing that it will work with CrowdStrike to combine Falcon Guardian with the Indian IT services firm’s cybersecurity advisory, AI governance, implementation and managed services delivered through its Cybersecurity Fusion Centers.

PNC Infratech stock hit its 20% lower circuit and reached a 52-week low of ₹140.32 per equity share, after the National Highway Authority of India (NHAI) extended the debarment of Awadh Expressway Pvt Ltd, its concessionaire, to the company.

“In continuation of our earlier intimation dated August 6, 2026…it is informed that PNC Infratech Limited (the "Company") received a letter from NHAI on 11.09.2026, extending the debarment of Awadh Expressway Private Limited (the "Concessionaire") for a period of three years to the Company, being the Promoter of the Concessionaire,” it said in a regulatory filing dated Sunday, September 14.

NHAI extended the debarment of the concessionaire to the company. PNC Infratech is the promoter of Awadh Expressway Pvt Ltd.

Due to the debarment, PNC Infratech will not be able to participate in any bid of the Ministry of Road Transport and Highways (MoRTH) and NHAI, along with their executing agencies, for three years.

The stock of Diamond Power Infrastructure hit its 5% upper circuit and a 52-week high of ₹387.50 per equity share on the NSE, after receiving a letter of award (LoA) from Adani Electricity Mumbai Limited for the supply of specialised MV cables. It also exited the NCLT resolution plan a full year ahead of schedule by pre-paying ₹2,401 crore.

Furthermore, the company also completed its exit from the resolution framework of the Insolvency and Bankruptcy Code, 2016 (IBC), administered by the National Company Law Tribunal (NCLT), by prepaying, in full, the entire ₹501 crore cash, plus 30-year bonds aggregating ₹1,900 crore consideration payable to its erstwhile lenders under the NCLT-approved Resolution Plan.

The amount was contractually payable over five years, with the final instalment due on September 30, 2027.

“By discharging it one year in advance — and availing the pre-payment discounts extended by the lenders in the plan — every obligation of the Promoters under the Approved Resolution Plan now stands fulfilled, and Diamond Power has formally exited the NCLT mechanism,” it said in a regulatory filing dated September 11.

Raymond shares surged around 12% to touch an intraday and 52-week high of ₹1,122 apiece in the trading session on September 15, as investors reacted to the latest order book update of securing new multi-programme aerospace orders from a leading Indian aerospace and defence company during the quarter.

In an exchange filing on Friday, September 11, Raymond Group disclosed that the company’s aerospace subsidiary secured significant new aerospace business from an unnamed leading Indian aerospace and defence company.

The order comprises more than 300 high-precision parts manufactured by Raymond Group, which will be used across multiple aircraft applications, with annual volumes exceeding 37,000 components.

The company also disclosed that at the expected production rates, this order represents a business potential of approximately ₹33 crore annually.

HFCL stock declined nearly 5% to touch an intraday low of ₹222.55 apiece on Tuesday, September 15, after the firm’s board of directors approved capacity expansion of optical fibre, optical fibre cable and preform manufacturing capacities.

The total capital expenditure for these additional capacity expansions will be ₹820 crore. The Board gave a nod for additional capacity expansion of 4.60 million fibre kilometres per annum for optical fibre, 5.64 million fibre kms per annum for optical fibre cable and 300 million tonnes per annum for preform.

The Preform manufacturing facility will be implemented in its wholly owned subsidiary HFCL Technologies.