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Bengaluru: As air quality continues to worsen across several parts of the city, hospitals in Bengaluru are reporting a steady rise in patients suffering from respiratory illnesses such as asthma, bronchitis and Chronic Obstructive Pulmonary Disease (COPD), health officials and doctors said.

Data from the Suvarna Arogya Suraksha Trust (SAST) shows that 3,891 patients received treatment for respiratory ailments between April and November 2024. The figure rose to 4,187 during the same period in 2025.

Private hospitals, too, are witnessing a 10–15 per cent year-on-year increase in such cases.

While doctors caution that the rise cannot be attributed solely to air pollution, a significant number of patients are non-smokers with no prior history of respiratory disease.

“Nearly 70 per cent of the patients we see are non-smokers with no previous respiratory issues. When other causes are ruled out, air pollution emerges as the most likely factor,” said Dr Manjunath PH, consultant interventional pulmonologist at a hospital in Kengeri.

Doctors noted that patient footfall spikes during the winter months and around Deepavali, when air quality typically worsens.

“There is a clear correlation between poor air quality and the rise in cases. People commonly present with persistent cough, breathlessness and irritation of the respiratory tract, indicating the impact of polluted air on their health,” said Dr Sheetal Chaurasia, consultant in pulmonary medicine at a private hospital in Whitefield.

Dr Chaurasia added that respiratory tract infections are also on the rise.

“Poor air quality leads to chronic airway inflammation, making the airways more vulnerable to infections. We are seeing an increase in both upper and lower respiratory tract infections,” she said.

Patients with pre-existing respiratory conditions remain the worst affected.

“For those already diagnosed with respiratory illnesses, deteriorating air quality significantly worsens the condition. Both the frequency and severity of attacks increase sharply,” said Dr Vandana P, a pulmonologist at a hospital on Bannerghatta Road.

Doctors also flagged a worrying trend of rising respiratory problems among younger adults and children.

To reduce exposure, they advised people to wear masks while travelling on two-wheelers or autos and ensure adequate ventilation at home to minimise indoor air pollution.

Prime Minister Narendra Modi, during his visit to Thiruvananthapuram on Friday, January 23, indicated that the Bharatiya Janata Party (BJP) is aiming to expand its political footprint in Kerala ahead of the Assembly elections scheduled in the coming months.

Speaking at a BJP-organised public meeting, Modi drew parallels between the party’s early electoral gains in Gujarat and its recent victory in the Thiruvananthapuram Municipal Corporation. The civic body win, which ended decades of Left control, was cited by the Prime Minister as a possible starting point for the party’s broader ambitions in the state.

Recalling BJP’s political trajectory in Gujarat, Modi said the party was largely insignificant before 1987 and received little media attention. He pointed out that the BJP’s first major breakthrough came with its victory in the Ahmedabad Municipal Corporation that year.

“Just as our journey in Gujarat began with one city, Kerala’s journey has also started with a single city,” Modi said, suggesting that the party’s municipal-level success could translate into wider electoral acceptance.

The Prime Minister alleged that successive governments led by the Left Democratic Front (LDF) and the United Democratic Front (UDF) had failed to adequately develop Thiruvananthapuram. He accused both fronts of corruption and neglect, claiming that basic infrastructure and facilities were denied to the capital city for decades.

According to Modi, the BJP’s control of the civic body represents a shift driven by public dissatisfaction with the existing political alternatives. He asserted that the BJP administration in Thiruvananthapuram had begun working towards development, though no specific details or timelines were outlined.

Addressing the gathering at Putharikandam Maidan, Modi said the BJP intended to project Thiruvananthapuram as a “model city,” reiterating his party’s commitment to governance-led change.

The Prime Minister’s visit to Kerala also included the inauguration of several development projects and the flagging off of new train services, as the BJP intensifies its political outreach in the poll-bound state.