Hello Dear, I've read your project summary and I can build a School Management System for you where teachers and students can register themselves, attendance, marksheets and all the other features that you mentioned will be built in to the system as per your requirements and I am absolutely sure that I can do the project very well. Share reference if you have any and also let me know what other detail and feature are you looking for in your School Management System?
Lets have a quick chat to discuss further.
I have extensive experience in designing and development of Websites, Mobile Applications, Management Systems and E-commerce or Online Stores Solutions.
Kindly have a look at my Portfolio and Client's reviews via this link,
https://www.freelancer.com/u/kamran2012
Thanks,
Faizan