Engineering

There is not so much difference as it is an aptitude test only.

Yes, you can attend the JEE exam. The preferable photo background is white during the registration process. But you have completed all the necessary formalities and now at the entrance exam stage. So, no problem will arise. However, you may take another print if possible by reducing the contrast.

First and the foremost thing, if you have a JEE Mains rank wherein you can get any government college, go for that.
Next, let's come to the topic of JIIT, Noida:
JIIT has two campuses in Noida i.e. Sec-62 and Sec-128, wherein Sec-62 is considered better in terms of faculty, placements and overall stat

It is just an entrance exam. But if you get a good rank, your fee will decrease, depending on your ranking. Yes, you have to pay the required fee. For fee details, visit its official website.

The placement record for UPES is 100 percent for CS branch students.

The average package for B.Tech CS in SRM, Chennai is 5 to 8 lakhs.

The MH-CET test centres will remain in Maharashtra. Candidates will have to choose the exam centres while filling the MHT CET application form 2019 in order of their preference. Mentioned below are the name of some districts where MHT CET 2019 will be conducted. Mumbai, Pune, Sangli, Nashik, Auranga

Take a drop, and try next year. I know you will definitely succeed and you have to work hard too.
All the best.

Hello Zainuddin,
Yes, there are plenty of good colleges offering Aeronautical Engineering branch. I am attaching a link that will give you all the required information about top engineering colleges offering aeronautical engineering branch in India.
https://www.shiksha.com/b-tech/ranking/top-aeronau