Those aspects are: (i) What is the effect of the quota rule in the matter of fixation of inter se seniority in the Gradation List so far as recruits from different sources are concerned? (ii) Though admittedly in 1957 under the relevant rule, a quota existed, was that basis altered or given up during the relevant peri od? (iii) What is the effect of this Court 's judgment in Badami 's case? Was the High Court correct in observing that this Court would not have come to the conclusion that quota was confined to substantive vacancies only if the true state of facts was known? (iv) What is the effect of the observation in Iyer 's case and does it supersede the rule in Badami 's case? (v) Does the situation highlighted in this case require any other direction? It is a well settled position in law that where recruit ment is from two sources to a service, a quota rule can be applied fixing the limits of recruitment from the two sources.