Hi Ritesh,
Please put as many filters as you can before putting any of your resources into this field.
It is not tough from syllabubs point of view but it is very tough from financial point of view.
I would simply suggest you to go through the blog DOs & DON’Ts for SAP Career (Certification) on the basis of my on going journey from an Accountant to SAP FI Consultant. and you will get answer to all your questions.
Regards
Chirag