NEW DELHI : Mortgage lender HDFC Ltd on Thursday said insurance regulator Irdai has given the final nod for merger of HDFC ERGO Health Insurance with HDFC ERGO General Insurance.In late September, the National Company Law Tribunal, Mumbai had okayed the scheme of amalgamation between HDFC ERGO Health Insurance (formerly Apollo Munich Health Insurance Co Ltd) and HDFC ERGO General Insurance Co Ltd (HDFC ERGO)."In this connection, we wish to inform that the Insurance Regulatory and Development Authority of India (Irdai) vide its letter dated November 11, 2020, has given its final approval for merger of HDFC ERGO Health with and into HDFC ERGO," HDFC said in a regulatory filing.The general and health insurance companies are the subsidiaries of.