The B.Tech (Bachelor of Technology) is a four-year undergraduate program that offers various specializations in engineering and requires candidates to have completed higher secondary education (10+2) with physics, chemistry, and mathematics. Admission is based on entrance exams like JEE Main and Advanced, and the average course fees range from INR 2.80 to 4.50 lakhs, with average salaries post-graduation around INR 4.1 lakhs per annum. Top B.Tech colleges in India include IIT Madras, IIT Delhi, and IIT Bombay, with rigorous eligibility criteria and a competitive selection process.