As you have asked about the Uttar Pradesh State Entrance Examination (UPSEE) answer key, I am giving you some information about it, check below for the details
Uttar Pradesh State Entrance Examination (UPSEE) is conducted by UPTU, in the month of April. It is held for intake of candidates into UG engineering, medical, management etc courses.

The result and the official UPSEE 2016 Answer Key will be issued in the month of May 2016.
Both the official and unofficial solution key will be released online only and candidates will not be able to attain it via any other medium

Date of Entrance test 17 Apr, 23 Apr & 24 Apr 2016
Declaration of UPSEE 2016 Result On or before 30 May 2016

The UPSEE Answer Keys are officially published by the Uttar Pradesh Technical University.
Result of UPSEE will be as per marks scored by the candidate and relative merit

The following separate papers are being conducted for admission through UPSEE.
Name of exam Subjects Answer Key
Paper 1 Physics, Chemistry, Mathematics will be published
Paper 2 Physics, Chemistry, Biology will be published
Paper 3 AG I, AG II, AG III will be published
Paper 4 Aptitude test for architecture will be published
Paper 5 Aptitude test for general awareness (BHMCT / BFAD / BFA) will be published
Paper 6 Aptitude test for Diploma holders in Engg will be published
Paper 7 Aptitude test for Diploma holders in Pharmacy will be published
Paper 8 Aptitude test for B.Sc graduates will be published
Paper 9 Aptitude test for MBA will be published
Paper 10 Aptitude test for Integrated MBA will be published
Paper 11 Aptitude test for MCA will be published
Paper 12 Aptitude test for 2nd year MCA (lateral entry) will be published