This site contains a list of cashless medi-claim cards for all insurance companies in the lists.
For those who are covered by their respective employers through such a schemecan simply get in touch with respective HR departments and get details of your group insurance policy numbers company to which contract is given etc.
For example in Deloitte we were covered by Allianz Bajaj in my present organization some other company oversees the medi claim benefits
type in the policy number , name of the insurance company insuring you after selecting group insurance option.You can print your E card and use the same at all major hospitals to claim benefits on hospitalization charges ( god forbidding such a need arises) . By using the card the insurance company directly pays the hospital the charges within the prescribed limit and you don't have to sit filling endless forms to claim medical insurance.
Some companies cover maternity care as well.
For those who have taken individual policies the same can be used to print cashless card for individual policies.