MRPL shares fell as much as 5% to a day low of Rs 162.50 on 30 September after a fire broke out at the company’s Mangaluru refinery.

Mangalore Refinery and Petrochemicals Limited said a high-pressure Cold Separator ruptured in its Coker Hydrotreater Unit, which set off a fire around noon at the Mangaluru plant.

The company shared the details with the exchanges on 30 September. The firm has sealed off the affected unit from the rest of the refinery.

Its emergency and firefighting teams brought the blaze under control, though work may carry on for some time to handle the site safely.

Fire tenders from the New Mangalore Port Authority and the fire and emergency services also rushed to the spot to help MRPL’s own crews, The Hindu reported.

One person had a minor injury. That person went to hospital and is out of danger, the company said.

Local media reports said people in Bajpe, Kalavaru, Baikampady, Jokatte, Surathkal and Katipalla heard a loud blast-like sound and felt strong vibrations, while doors and windows in some buildings were damaged.

A large plume of black smoke rose from the refinery. MRPL said there was ‘absolutely no reason to panic’ for anyone inside or outside its premises.

It added that the safety of staff and the plant remains its top priority. On the NSE, the stock opened at Rs 172.50 and touched a day high of Rs 180.80.

It turned after reports of the fire emerged and fell to a low of Rs 162.50 in the afternoon, about 10% below that high.

It’s up 9.59% so far in 2026 and 1.13% over the past week, though it has lost 1.27% in the last month. Its 52-week high is Rs 212.31, set on 6 March.

At the close, shares settled at Rs 169.29 on the NSE, down by 1.37% from the previous close of Rs 171.65. About 308.53 lakh shares changed hands during the session.

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