To pursue B.Tech in Computer Science and Engineering at Raj Engineering College, Jodhpur, you need to meet the eligibility criteria and follow the admission process. You should have completed 10+2 or equivalent with physics, chemistry, and mathematics with a minimum percentage of 50% in these subjects. You will also need to appear and qualify for either the JEE Main exam or the RPET, which is also known as the Rajasthan Pre-Engineering Test.