Hello.
In Allahabad University (UOH)  admission for BTech program will be done on the basis of your score obtained in UPSEE (Uttarpradesh State Entrance Exam) or also JEE mains inducted in the process of admission , you can go for either of the exam.
Apart from this Allahabad University offers you many Undergraduate and Postgraduate courses, for which there is separate exams UGAT and PGAT
Here PGAT is further divided into two parts:
PGAT-I (for conventional courses)
PGAT-II (for non conventional courses MTech is also included).
Key point is that for all specialization of MTech you can go with your performance in PGAT-II ,but for MTech in electronics and computer science your admission will be judged on the bases of the GATE score.
How much should we score in UPSEE or JEE to secure a seat there?
According to the past year analysis you need to maintain your rank between 5000-23000 to secure a seat in Allahabad University for BTech course, if you are getting below 5000 then it is good fact , I gave this picturised data by considering for all branch just for securing a seat it may be civil too for which generally cutoff goes high, now comming to the JEE mains so in this you must have your rank below 25,000 for securing a seat in the University in terms of percentile it is about 95+ percentile , well whatever is the prediction you just need to give your 100% and always try to maintain your score as much as you can score hopefully you may have good College/University than what you are expecting.
Note: there are various constituent colleges of Allahabad University and in each college branches offered for BTech course may vary, here is the list of all constituent colleges of Allahabad University by clicking on it you can see everything about it from its reputation to student feedback, and also don't forget to see branches offered for BTech by clicking on the course option.
https://www.careers360.com/university/university-of-allahabad-allahabad/affiliated-colleges
Best of luck.

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