Tata Motors posted a 63 percent drop in quarterly consolidated profit, as its Jaguar Land Rover unit absorbed a $177.2 million cyberattack charge while contending with a demand slump in China and U.S. tariff pressure.

Consolidated profit for the April-June quarter reached ₹3,924 crore, down from ₹10,514 crore in the same period a year earlier and below the consensus estimate of ₹4,055 crore.

JLR accounts for roughly 80 percent of Tata Motors' consolidated revenue, making the unit's underperformance the primary driver of the parent company's results. The cyberattack charge was recorded as a one-time item, directly eroding the British carmaker's quarterly profitability.

The quarter extends a difficult stretch for JLR. The luxury carmaker's profit was nearly wiped out last year as it worked to recover from prior market pressures.

JLR's management outlined a profit recovery plan alongside efforts to expand its U.S. presence, aiming to rebuild margins and cut operating costs. Investors responded poorly: shares of Tata Motors fell as much as 10 percent following the announcement, reflecting disappointment with the proposed strategy.