Computer Science in India

Yes, you can get admission in B.Tech college without JEE score, but not in every college. Like every government college now has start considering JEE score. Some demmed University and central university conducts their own exams for students to get admission in different branches of B.Tech. Also almost every private colleges and private universities give direct admission and some conduct their own exams to get admission, but some reputed college conduct their own exam and also consider JEE score. Now there is common exam to get admission in government or central university which is CUET through which you can get admission in best universities which has very low B.Tech fees.

Yes, you can do M.Tech in specialisation of computer Science if you are from non CS branch. For this, first of all you would have to SEE particular college computer Science department M.Tech condition, most of college's CS department allowed some non CS branch students to pursue M.Tech from some of their specialisation, but not for every M.Tech specialisation. Example if you got good rank in GATE then IIT Delhi allow non CS branch GATE score to pursue M.Tech in some CS specialisation but not in everyone, also most of college's non CS department has their own some M.Tech CS specialisation like IIT Delhi electrical engineering department has M.Tech specialization in Computer Technology with EE, EC, IN GATE score
So first just check the particular college M.Tech brochure, in which they clearly mentioned that which branch of students can pursue M.Tech in any particular specialization.

Since its start, CU has established standards for engineering education and is rated as one of the Best Engineering Colleges in Punjab, India. Our dynamic hands-on experiential learning-based engineering education and flexible academic model, which fosters imagination and innovation, have enabled us to produce engineers capable of meeting the real-world demands of their profession and providing the best solutions for the betterment of society. Pursuing Computer Science & Engineering at the finest CSE engineering institution in Punjab, India provides you a competitive advantage. It provides a vibrant research atmosphere, cutting-edge industry-sponsored facilities, and innovative teaching aid. Our curriculum includes both basic and advanced engineering and computer principles, as well as the opportunity to acquire exposure to new technologies such as the Internet of Things (IoT), Mobile Computing, and Open Source and Open Standards. 10+2 includes Physics and Mathematics as required courses, as well as one of the following disciplines: Chemistry / Biotechnology / Computer Science / Biology with a minimum of 60% in the aggregate. In India's thriving IT industry, there are lots of opportunities for recent computer Science graduates. Furthermore, Computer Engineers have several opportunities to work in IT firms in areas such as design, development, assembly, production, and maintenance, among others. Working as a programmer, web developer, or E-commerce expert for telecoms, automotive, or aerospace firms, for example, may be a rewarding professional path.