You should score more then 150 marks in MHT CET to get good colleges.

To score good marks in MHT CET you should score good marks in each section. If your chemistry is weak you should work upon it. Try to clear your concepts for chemistry you can take help

Hey Raman Pandey,

GNIT doesn’t accept JEXPO rank! They consider only ECET rank

UCEED is the entrance exam if you wish to pursue design. Check details here https://engineering.careers360.com/articles/uceed. The next step would be CEED which is the PG entrance exam (https://engineering.careers360.com/articles/ceed). However, you can write CEED even if you are an engineer. Either way is fine to pursue specialization in product design.

You may check out this link provided by career360 itself to know about good institutions in Germany -

https://studyabroad.careers360.com/articles/top-universities-in-germany-2018.

good wishes

NTA Scores are given in percentile.
Percentile is calculated by the ratio of the number of values to the total number of values . You cant say/depict your actual score/rank from your percentile neither can you calculate it by only marks. To calculate the actual score/rank/percentile you would need to

you can check course structure on the website of each IIT

Why do you want to want to do diploma? As diploma is for students after class 10. After class 12, it is B.Tech which is graduation. I would suggest you go for graduation. The diploma fees will depend upon where you want the admission. So please write back to me

After your diploma you can apply for the later entry exam to apply for the degree course. And after appearing exam you can take admission in colleges for the degree courses. The selection is based upon your diploma percentage, your performance in later entry exam.