Trending @HCL; Can you confirm which insurer is providing health care insurance currently for our employees. Is it Vidal or any other? If so how is it?

TPA - Vidal HEALTH which take care of approvals n claims
Insurance : New India Assurance LTD

Biggest pros : Pre Existing Disease covered

Don't go for private insurance because pre existing is not covered .

Additional to above question i would like to know about having a private insurance as well any ideas guys?