Telangana

Hello Pranith, Tamilnadu government has put stringent conditions for eligibility. However lots of seats, more than 50K, remained vacant last year and as per reports, private colleges are putting pressure on Tamil Nadu government to ease some conditions of eligibility enabling students outside the state can come and fill up vacancies. But when this happens nobody can tell. You will have to wait till release of notification. I am attaching a link that will give you all the required information about TNEA. https://www.shiksha.com/b-tech/tnea-exam
Best wishes to you.

Hello Shirish, you can get transfer to another Diploma college of the completion of your first year examination. You should approach the administrative department of you are institute and seek information and knowledge about the procedural aspects of the issue. You may need to obtain certain Certificate and submit documents. They will guide you in a proper way
Best wishes to you.

Hello Syed Abdul Quyyum, yes there are plenty of colleges in Hyderabad which offer Diploma in computer Science. I am attaching a link that will give you all the required information about these colleges. https://www.shiksha.com/engineering/colleges/diploma-computer-science-engineering-colleges-Hyderabad
Best wishes to you.