With the threat of dengue looming large in Uttar Pradesh's capital, 433 people have been confirmed to be affected by the disease here since January including Navneet Sehgal, principal secretary, Khadi Gram Udyog.

Sehgal has been diagnosed with the vector-borne disease and is undergoing treatment at the King George's Medical University (KGMU). Chief medical superintendent, KGMU, said, "On Thursday night, the principal secretary's health deteriorated. At the same time his platelets were counted 10,000. For this reason, he has been admitted to the respiratory intensive care unit."

Besides, 18 dengue cases were reported on 11th October, the authorities added.