applicability of presumptive scheme

I am a salaried medical professional. I have income from salary , f&o profit with turnover about 30 lak, private practice income. my question is can I use presumptive scheme for f&o, and presumptive scheme for private practice. which itr form to be used for filing? with regards to f&o income I may save tax in presumptive scheme, because my income comes under 30% slab. is it possible to use presumptive scheme in my case. what are the conditions to utilize the presumptive scheme for F&O, which saves tax for me?
thank you.