Renewing a health insurance policy can induce a rare trauma. Ask 68-year-old Sarayu Arvind Parekh. In 1999, Mumbai-based Parekh bought a mediclaim, for which she paid an annual premium of Rs 14,596 till 2007, an uneventful, claimless period. Then, in 2008, she had to undergo a knee surgery and made a claim.

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