Insurance considers an important phenomenon called as insurable interest that determines whether an object/person can be insured by a proposer. It means that the insured person should derive a financial or other kind of benefit from the continuous existence, without damage, of the insured object/person. Since these valuable antiques don't belong to you, you don't have an insurable interest in them and hence, these can't be covered under your home insurance policy. Damage to property not belonging to or held in trust by or in the custody or control of the policyholder is excluded under the home insurance policy.
Your home insurance will not cover the coaching class. It is advisable for you to take a separate Fire policy & Burglary policy for the ground floor portion let out on hire for coaching class, and take a Home Insurance Policy for the rest of your residence.
Unless your company's group health policy excludes gym injuries, by and large most group health policies cover such injuries. I would suggest you to get in touch with the concerned person/department in your company who handles group health policy and check the exclusions of the policy. You can also approach the insurance company to understand the coverage and ask them for the reason behind not covering you surgery despite the declaration made by you. Alternatively, I would strongly recommend you to buy a separate individual health policy for yourself and your family members rather than being completely dependent on your organisation's health insurance policy. In case you change your job or decide to start your own business in future, this group health policy won't come to your rescue in case of any medical exigency.
The writer is MD & CEO, Bajaj Allianz General Insurance