As you have asked about the dates from which JEECUP results will be available, I am giving you information about it, check below for the details

UP Polytechnic Joint Entrance Examination or JEE (P) results will declared in the last week of May.
Merit obtained in Joint Entrance Examination (Polytechnic) will be the basis of Diploma, Post Diploma, and Post Graduate Diploma in participating institutions.
Applicants who appeared for the exam will be able to check their JEECUP Results online at its official website

Steps to check the result:

Visit the official website
Search for the result link.
Click on it
Fill out all the necessary details like Roll Number, Name, Mobile Number, Date of Birth and Email ID
Click on the ‘Submit’ Button
Your result will be displayed / downloaded on the computer.

JEECUP Score Card –
Candidates can download score card of JEECUP exam once the result is announced.
This score will indicate actual marks obtained in the exam and whether candidate has qualified or not for the counselling process.