Normally, it is not a good idea to enroll for a Polytechnic diploma and at the same time for a BA degree, and especially both of which entail regular classroom attendance.



Time Constraints: Both programs require significant time commitment, and balancing both might become challenging.
Academic Rigor: Both programs have their own academic demands
Government Exam Eligibility: While specific eligibility criteria vary from exam to exam and government body to government body, it generally allows for one degree or diploma to be pursued before the second. It can avoid complications in document verification and eligibility checks.
There might be exceptions, however

Distance Education or Online Courses: If you are planning for a BA through distance education or online mode, then it can be done parallel with the Polytechnic diploma but, only if you can utilize your time effectively .
Particular Government Examination Requirements: Depending on the specific government exam, the eligibility criteria may be modified to accept more than one degree or diploma. Read the eligibility criteria attached to a particular examination that you are aiming at.
Therefore, it is advisable to have a consultation with the Polytechnic and University's Academic Counsellor in terms of specific rules and regulations.
Examine the Notified Government Exam Eligibilities: Thoroughly read the eligibility criteria of those government exams that you want to clear.
Prioritize your goals: Assessing one's academic capabilities and managing their time so as to realize whether one can handle both concurrently.
Therefore, it's important to look into all these aspects carefully, then make an informed decision accordingly, based on your academic and career goals.