Amity University, NOIDA is a full-fledged University (not a deemed University). It is a private University established under Uttar Pradesh Government Notification No. 403/VII-V-I-I (Ka) I. Amity University is listed in the official website of Government of Uttar Pradesh . This University has been recongnised by the University Grants Commission (UGC).
As the University is recognised by the UGC, all the full-time degrees being issued by the University are valid. So, the PhD in Environmental Science is a valid degree, and after obtaining this degree, you would be able to apply for any position where this qualification is essential. For the position of lectureship in Environmental Science, this degree would be very helpful.
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