Best Health Insurance in Chennai That Covers Everything – Recommendations & Costs?

I'm looking for a comprehensive health insurance plan in Chennai that covers everything—hospitalization, outpatient care, critical illnesses, and any other essential benefits. Ideally, I want something with minimal exclusions and hassle-free claim processing. For those who have health insurance, which provider do you recommend, and how much does it cost per year? How has your experience been with claims and customer service? Any red flags or things to watch out for? Would love to hear personal experiences before making a decision. Thanks in advance!