other applicable norms, respondent had no option but to issue fresh advertisement for filling up the post under GIA Rules, but admittedly by the candidates having requisite qualification. Otherwise also, at this juncture, petitioner nowhere applied, rather straightway approached this Court for quashing order dated 27.03.2023, whereby she was relieved from her duties. There cannot be any quarrel with the proposition of law that ad-hoc employee cannot be replaced with another ad-hoc employee but facts of the judgment passed by Hon'ble Apex Court in Manish Gupta and another Vs. President, Jan Bhagidari Samiti and others, Civil Appeal Nos. 3084-3088 of 2022, decided on 21.04.2022, are totally different to the facts of the present case because in Manish Gupta’s case petitioners were duly qualified for the post held by them on adhoc basis. However, in the instant case admittedly petitioner was never eligible to be appointed against the post of Assistant Professor because she did not possess Ph.D degree, which is mandatory for being appointed as Assistant Professor (Physics). Petitioner has neither cleared National Eligibility Test (NET) conducted by UGC or CSIR nor she has completed her Ph.D degree and as such, she cannot be appointed against the post of Assistant Professor (Physics). Past service rendered by the petitioner in the Physics Department of the respondent-College cannot be a ground for her to claim continuance of her service as Assistant Professor, especially when .H.P. Private Educational Institution Regulatory Commission