Hello dear..Expected date of Entrance Exam( UGAT)in Allahabad University for B.Sc course is between  20th May to 22nd May 2019.For rest of the subjects exam is supposed to be schedule between 27th May to 29th May 2019. Admit card were already released.( 13th May)  You can download from the official website of Allahabad University.Tentive date of Result  declaration is 10th June to 15th June.

For more details you can check the following link 

https://www.google.com/amp/s/university.careers360.com/articles/allahabad-university-admission/amp

Hope it helps.

Good Luck.