Star Health And Allied Insurance — repetitive calls from star health insurance

I've been receiving calls from star health insurance repeatedly, inspite of me informing them my disinterest on their products. I hadn't attended those calls & even blocked few numbers, but still they are tortruing repeatedly from different numbers. It is a mental agony these people are causing. This is spoiling my daily routine & once even my vacation. Need a full stop for this unruly act from the representatives of star health insurance.