“17. Mention may next be made of another writ petition being W.P. (C) No. 10026/2016, though filed at the same time as the writ petitions aforesaid transferred to the AFT by the Division Bench of this Court vide judgment dated 26th May, 2017, but in which the claim for pro rata pension was premised on the challenge to the letter/circular No. 8(3)/86/A/D(Pension/Services) dated 19th February, 1987 aforesaid, as discriminatory. The said writ petition titled Govind Kumar Srivastava v Union of India came to be decided on 9th January, 2019 vide judgment reported as 2019 SCC OnLine Del 6425. The counsels for the respondents Union of India/IAF in this petition also took a preliminary objection to the maintainability thereof for the reason of availability of alternate remedy before the AFT. It was the contention of the counsel for the petitioner therein that the AFT was not entertaining challenges made before it to the circulars; reliance was placed on an order dated 31st July, 2018 of the Principal Bench of AFT holding that the challenge to circulars could not be entertained by AFT in terms of Section 14 of the Armed Forces Tribunal Act as it did not give power of issuance of writ to the AFT. Per contra the counsel for the respondents IAF relied on L. Chandra Kumar v Union of India4 , to contend that AFT was empowered to test the vires of subordinate legislations and Rules. The Division Bench of this Court held that since the challenge in the writ petition before it was to a letter/circular of the MoD on the ground of being discriminatory for granting the benefit of pro rata pension only to Commissioned Officers and not to NCOs/PsBOR, and the AFT vide its order dated 31st July, 2018 had already held that it could not entertain such challenge, there was no merit in the preliminary objection raised by the respondents IAF to the maintainability of the writ petition. Proceeding to decide the writ petition, recording that (i) the petitioner therein enrolled as an Airman on 19th June, 1998; in 2003 he was promoted to the rank of Corporal; (ii) pursuant to an advertisement issued by Air India, the petitioner applied for post of Technical Officer on 10th January, 2007 and on 4th July, 2008, NOC was issued by the respondents IAF permitting the petitioner to take up employment with Air India, which was a PSU; (iii) the petitioner was discharged from the respondents IAF after having served for 10 years and one month on 21st July, 2008 and on 8th August, 2008 joined Air India as a Technical Officer; (iv) the petitioner, on 29th April, 2016 applied to the respondents IAF for grant of pro rata pension and which application was rejected vide response dated 6th June, 2016; (v) the case of the petitioner was that PsBOR/NCOs like the petitioner were being discriminated in the matter of grant of pro rata pension as the payment of pro rata pension only to Commissioned Officers vide letter/circular