Hello abbastapiya72

I hope you are doing good.  I would like to know you that it is difficult to compare diploma or do direct bachelors after 11 and 12th , it varies from person to person . Their are some students who directly wants to bachleors in automobile after completing 10+2 or some students go for Diploma after 10th. According to me, field of automobile requires practical implementation and manuak work  as compared to core branches like computer science which needs logic buildings. I would you to go for polytechnic and gain practical knowledge. Then after completing your diploma , directly take admission in second year of bachelors

Hope you found this answer helpful. Good luck for your future