Polytechnic

If you have good marks, only that is the criteria for sound engineering. That's enough for the certification and admission.

Yes, of course you have many options in government jobs, because the Polytechnic guys has a post which is called junior engineer post. Just checkout in some government job alert sites.

If you are interested in vehicles and some new engines, then you can go with automobile, but you are interested in deep mechanical concept then you go with mechanical. But, if you want to go automobile after mechanical engineering you have a chance to go with automobile. You are doing engineering change you branch in engineering it's quiet easy way.

The major difference between the 2 degrees is that, BCA is a professional degree whereas B.Sc is a graduation degree. Although, both has almost equal recognition, B.Sc in Computer Science is valued more in comparison to BCA. So, pursuing a B.Sc (Bachelor in Science) will be beneficial.

Hello Jatin,
Yes, you can surely seek admission in B.Sc course after your Diploma. UP government recognises Diploma as equivalent to class 12th. You can get this certificate from your institute where you are doing Diploma. This may be required when you seek admission in B.Sc.
Best wishes to you.

Yes, many of the colleges allow this. Some of the colleges in the private sector are Lovely Professional University and Oriental College of Technology.

Yes, many of the colleges allow this. Some of the colleges in the private sector are Lovely Professional University and Oriental College of Technology.

Hi,
It comes under UG category.

Hi Rajeev,I can say, yes if you are under the age limit and entrance qualification, if you have the both I am sure you can write the Entrance exam for the Diploma.