(a) in the case of a suit against the Central Government, 9[except where it relates to a railway] a
Secretary to that Government;
10[(b)] in the case of a suit against the Central Government where it relates to railway, the General
Manager of that railway;
11[(bb) in the case of a suit against the Government of the State of Jammu and Kashmir, the Chief
Secretary to that Government or any other officer authori zed by that Government in this behalf;]