Every student in 1st year of engineering study the same subjects in 1st and 2nd semester. Only few subjects are changed, but others remain the same. the 1st year is divided into 2 semester. One is Physics semester and other is Chemistry semester where you have to study Physics and Chemistry respectively. Also, coding is introduced in 1st year. Some colleges teach Python, some C++, some C. It depends on the college. Other subjects which students study are same, but there may be changes in the syllabus.