As per section 60 (kb) of The Code of Civil Procedure, all money payable under a policy of insurance on the life of the judgment debtor, are not attachable.

Section 6 of the MWP Act states that the benefits under a Life Insurance Policy taken by a Married man, under MWP Act for the benefit of the married man's wife, or children or any of them, shall be payable only to the wife or children according to the ratio decided by the Life Assured. Further it states that the said Policy does not form part of the estate (property) of the deceased Husband. Hence the husband does not have any control over the Policy and is not his asset. Therefore the said Policy cannot be attached by the Creditors of other Legal Heirs of the deceased husband.
It is to be noted that unlike in the case of other Life Insurance Policies which can be claimed by other Legal Heirs also (even though may not be attachable), MWP Act Policies can neither be claimed by the other Legal Heirs nor by the Husband's Creditors. Even the husband cannot claim any benefit. Therefore, an absolute estate is created in favour of the wife or children. This is a special privilege given by Law only to a Life Insurance Policy taken by a married man. This benefit is not available for any other asset.

Life Insurance also offers you tax benefits. Check the chart below for benefits on life insurance, pension plans and health insurance.