(1) In order to comply with the requirements of this Chapter, a policy of insurance must be a policy which (a) is issued by a person who is an authorised insurer or by a co operative society allowed under section 108 to transact the business of an insurer, and (b) insures the person or classes of person specified in the policy to the extent specified in sub section (2) against any liability which may be incurred by him or them in respect of the death of or bodily injury to any person caused by or arising out of the use of the vehicle in a public place: (4) A policy shall be of no effect for the purposes of this Chapter unless and until there is issued by the insurer in favour of the person by whom the policy is effected a certificate of insurance in the prescribed form and containing the prescribed particulars of any conditions subject to which the policy is issued and of any other prescribed matters; and different forms, particulars and matters may be prescribed in different cases, (5) Notwithstanding anything elsewhere contained in any law, a person issuing a policy of insurance under this section shall be liable to indemnify the person or classes of person specified in the policy in respect of any liability which the policy purports to cover in the case of that person or those classes of person.