I can write your Qt GUI app, but do you consider it, that it can be done for 1500 INR? If you recognize this platform as a reliable source finding resources, then I am sure you should also recognize that it can be done for 50K INR. There are expenses for a freelancer's infrastructure, tools and apps kits costs. I am having all this with exceptionally good knowledge of the skills, but you have a consider this that it has to be reasonably paid.
Message me if you like to do it with me at this bid amount.