Star Health and Allied Insurance is set to increase premium rates for certain individual health insurance plans, with an anticipated rise of approximately 15%. In February, the insurer raised premiums for its Family Health Optima (FHO) insurance plan, a popular product, by 25%.Company officials clarified that the hike in FHO was the sole increase since the onset of pandemic. The products, currently under review for a premium adjustment, have not experienced a rate revision for several years, they added.