Mechanical Engineering

Yes, you can do MBA after Diploma. Go through the below links for colleges in North and South:
https://www-shiksha-com.cdn.ampproject.org/v/s/www.shiksha.com/mba/articles/amp/apply-to-top-mba-colleges-in-north-india-blogId-6685?amp_js_v=a2&_gsa=1&usqp=mq331AQDoAEC#referrer=https://www.google.com&_tf=From %1$s&share=https://www.shiksha.com/mba/articles/apply-to-top-mba-colleges-in-north-india-blogId-6685

Hello,
the eligibility to study Masters in marine biology is to have bachelors degree in chemistry, zoology, botany, geography, geology, physiology, biochemistry and microbiology. You need to have the basics of the subject that are taught in the above mentioned subjects.

Yes, you can get admission here for lateral entry. You can apply for admission.

To get direct admission in engineering degree course in second year on the basis of Polytechnic Diploma, it is not required to appear for CET. He will be admitted based on the marks obtained in Diploma.

Hello,
It all depends on the dynamics of the situation. How many students are desirous of this branch, number of seats available etc. But, it's reasonable to say that a student with 60% marks has good chances of getting admission. Best wishes to you.

Hi,
Visit this link to check colleges based upon your rank:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
Good Luck. Hope it helps.

It is very nice to hear from you that you are interested in doing your graduation in engineering in aeronautical engineering branch after completion of your Diploma in mechanical engineering. Yes, you can definitely and surely dream of this. For admission in IIT's, you need to score 75% in Diploma and clear JEE Mains & Advanced exams. For other colleges, you need to follow prescribed procedure. Best wishes to you.