(1) In this Act, unless the context otherwise requires,
(a) "acting Chief Justice" means a Judge appointed under article 223 of the Constitution to perform the duties of the Chief Justice;
(b) "acting Judge" means a person *** appointed to act as a Judge *** [under clause (2) of article 224 of the Constitution];
(c) "actual service" includes
(i) time spent by a Judge on duty as a Judge or in the performance of such other functions as he may, at the request of the President of India, undertake to discharge;
(ii) vacations, excluding any time during which the Judge is absent on leave;
(iii) Joining time on transfer from a High Court to the Supreme Court or from one High Court to another or from the Supreme Court to a High Court;
(iv) time spent by a Judge on duty as a Judge of a former Indian High Court;
(v) time spent by a Judge to attend the sittings of the Supreme Court as an ad hoc Judge under article 127 of the Constitution; and
(vi) vacation (excluding any time during which the Judge was absent on leave) taken by a Judge as a Judge of a former Indian High Court;br
(d) "additional Judge" means a person *** appointed as an additional Judge *** [under clause (1) of article 224 of the Constitution];
* * * * *
(f) "High Court" means a High Court [for a State] and includes a High Court which was exercising Jurisdiction [in a Part A State or] in the corresponding Province before the commencement of the Constitution;
(g) "Judge" means a Judge of a High Court and includes the Chief Justice [an acting Chief Justice, an additional Judge and an acting Judge of the High Court];
[(gg) "pension" means a pension of any kind whatsoever payable to or in respect of a Judge, and includes any gratuity or other sum or sums so payable by way of death or retirement benefits;]
(h) service for pension includes
(i) actual service;
[(ii) the amount, actually taken, of each period of leave on full allowances at a rate equal to the monthly rate of the salary;]
(iii) joining time on return from leave out of India;
(i) "prescribed" means prescribed by rules made under this Act.
(2) In the calculation of service for the purposes of this Act, [service for any period or periods as acting Judge or additional Judge] shall be reckoned as service as a Judge but, save as otherwise expressly provided, previous service as an acting Chief Justice shall not be reckoned as service as Chief Justice.
* * * * *