Information Technology (Certifying Authorities) Rules, 2000
13. Cross Certification.-
(1) The licensed Certifying Authority shall have arrangement for cross certification with other licensed Certifying Authorities within India which shall be submitted to the Controller before the commencement of their operations as per rule 20:
Provided that any dispute arising as a result of any such arrangement between the Certifying Authorities; or between Certifying Authorities or Certifying Authority and the Subscriber, shall be referred to the Controller for arbitration or resolution.
(2) The arrangement for Cross Certification by the licensed Certifying Authority with a Foreign Certifying Authority along with the application, shall be submitted to the Controller in such form and in such manner as may be provided in the regulations made by the Controller; and the licensed Certifying Authority shall not commence cross certification operations unless it has obtained the written or digital signature approval from the Controller.