Computers & IT (Non-Engg)

You have to start with one course at a time. I would recommend to start with web designing first. As you are from Maths background, web designing will develop your interest. Simultaneously, start learning about hardware and networking basics and then do CEH.
All the best.

I tried searching and couldn't find any. You can contact some previous student who have appeared exams. There might be some Facebook group where could find someone. Else, simply focus on preparations and do your best.

ISTQB is the testing certification which you can pursue. There are several levels in it. At this stage, you can easily clear the level 1 of ISTQB.
All the best.

Certifications are mostly independent from the graduation you do. So, you can go ahead and do Microsoft certifications of your choice. All the best.

Having a certification will add value to your profile and will let the recruiter know that you are skilled and were capable enough to clear MCSE certification. But, a graduation is must. You might get job in some startup or small company, but in order to grow in life, you will need a graduate degree. Graduation is primary, Certifications are secondary add-ons. So, complete your graduation. All the best!

It all depends on your job role and career aspirations. If you are working on Microsoft technology, then obviously you must focus on Microsoft Certifications. To start with, you need to start with a single certification at a time. You cannot sail in multiple boats simultaneously. If you want to go for Cisco path then start preparing for CCNA and don't get distracted. First become expert in one domain and then when you are expert in one domain then exploring multiple domains.
All the best.

There are many institutes offering SAP training. Check out which one is in your town. Talking about 100% placement, every institute will say that they provide 100% placement but no one will guarantee it. Also, placement is something which is driven by both the student and the institute. If you are good and perform well in interviews, you will be placed easily after SAP certification. Atos is providing SAP Trainings. You can check it out - http://sapeducation.atos.net/.

Good to see that you want to complete your graduation. You can check out some night school in your vicinity. Also, now a days there are a lot of distance learning programs available. You need not leave your job for them. You can study part time and work too. Check out courses offered by IGNOU.
All the best!

See, at the time of filling, you require documents. Otherwise, at the time of entrance test, you have to only have to show admit card to the invigilator available there and other id proof if any, mentioned in the admit card.