Hello Aditya

There are a lot of UG and PG courses in Computer Science. All the courses can give you a proper hold on the subject. You just need to choose anyone based on your knowledge and interest. But, in case you are a beginner in this field, I would like to suggest you to go for a UG program in Computer Science, so that you can start right from the basics and then reach the advanced level of Computer Programming in a smooth manner.

Also, you can appear a number of entrance examinations in order to get admitted in a recognized college or university.

The UG courses and the well-known competitive examinations for the courses are listed below:

BE/BTech in IT

Popular entrance examinations:

JEE Main (National Testing Agency)

BITSAT (Birla Institute of Science & Technology)

MET (Manipal Academy of Higher Education)

VITEEE (VIT University)

SRMJEE (SRM Institute of Science and Technology)

BCA

Popular entrance examinations:

IPU CET BCA (GGS Indraprastha University, Delhi)

KIITEE BCA (Kalinga Institute of Industrial Technology University, Bhubaneswar )

PESSAT (PES University, Bangalore)

LUCSAT BCA (Lucknow University, Lucknow)

BSc in IT

Popular entrance examinations:

IIT JAM (IIT Kanpur, Uttar Pradesh)

NEST (National Institute of Science Education and Research, Bhubaneswar)

CG PAT (Chhattisgarh Professional Examination Board, Raipur)

GSAT (GITAM University in Visakhapatnam, Hyderabad, and Bangalore. )

IISER Entrance Exam (Indian Institutes of Science Education & Research for Berhampur, Bhopal, Kolkata, Mohali, Pune, Thiruvananthapuram, Tirupati)

GBPUAT (Govind Ballabh Pant University of Agriculture and Technology, Pantnagar)

Answering to your second question, I would like to say that yes, you can definitely study Computer Science parallelly with your Under Graduate degree, but do keep in mind that you will have to invest a good amount of time in the Computer Science course in order to be skilled in the field of programming.

Hope this was helpful!