The market moved into the afternoon with a steady undertone, even as individual stocks pulled in different directions. The Nifty was up 0.22% at 26,120 levels, while the Sensex gained 0.24% to 85,430 levels, suggesting traders were willing to stay with risk despite a messy start for defence counters and a sharp churn in select midcaps.

HAL (Hindustan Aeronautics)

HAL’s share price slipped nearly 4%, and the reason was grim enough to overshadow the rest of the defence basket. The Tejas fighter jet crash at the Dubai Air Show the second such loss in less than two years dragged the stock into a sharp selloff at the open.
Once HAL came under pressure, the predictable chain reaction followed. Bharat Electronics, Bharat Dynamics, Paras Defence, Data Patterns and several other defence names fell 2%–3%, while Apollo Micro, Astra Micro, Avantel, DCX Systems, MTAR Technologies and a handful of others dropped 1%–5%.


Defence & Shipping Basket

The pain wasn’t limited to HAL. Defence stocks collectively slid between 2% and 4%, shaken by the Tejas crash and the potential implications for perception and future procurement.
Shipping names mirrored the weakness. Cochin Shipyard fell 2%, while Dredging Corp and GRSE dropped around 3%. Mazagon Dock, SEAMEC and Shipping Corporation softened by roughly 1%.
The selling wasn’t chaotic, but it was persistent enough to alter the tone of the sector for the day.

IndiGo (InterGlobe Aviation)

IndiGo’s share price climbed over 2% in early trade, then traded flat during the midday session riding a very simple catalyst that tends to matter more than most people admit entry into the Sensex. BSE Index Services confirmed over the weekend that InterGlobe Aviation will replace Tata Motors Passenger Vehicles in the benchmark from December 22. For a company already carrying a market valuation north of Rs 2.27 lakh crore, the index inclusion acts as a new endorsement, and the stock responded exactly as expected. Even after cooling a bit, IndiGo was still holding modest gains around the midpoint of the session.

Groww (Billionbrains Garage Ventures)

Groww briefly jumped 3.4% in early trade, extending the technical rebound that started on Friday. But the recovery wasn’t convincing enough to hold. By midday, the stock had slipped 0.69%.
The back-and-forth makes sense for a stock that soared 94% over issue price within days of listing and then gave up 17% in just two sessions. Profit-taking hasn’t left the counter, and every bounce still meets resistance.

NBCC India

NBCC stayed firm, building on last week’s momentum. The stock had surged nearly 5% after securing Rs 71.86 crore worth of new work orders, and traders continued to carry that sentiment into the new week.
The fresh mandates, including a PMC project for a new Composite Regional Centre campus in Madura,i added to the perception that the company’s order pipeline is holding up better than expected.

Karnataka Bank

Karnataka Bank shares jumped 6.8%, reacting to the bulk deal where Cupid’s CMD Aditya Kumar Halwasia purchased shares worth Rs 71 crore. The acquisition at a premium signalled high-conviction buying from a known investor, something that tends to spark quick interest in a mid-sized lender.

Tata Motors Passenger Vehicles

The recently demerged Tata Motors Passenger Vehicles unit was down around 1.5%, a decline that lined up directly with the news that it will exit the Sensex to make way for IndiGo next month. Index reshuffles almost always produce this kind of adjustment nothing dramatic, but visible enough.

TCS

TCS inched up 0.17%, a restrained move considering the legal overhang. The Appeals Court upheld the damages imposed on the company but removed the earlier injunction, sending the matter back to the Texas District Court for review.