Is menstrual period bleeding similar implantation bleeding? If not what is the difference between then?

Implantation bleedin. Much lighter sometimes not even noticeable.
Usually not. Implantation bleeding tends to be lighter than true menstrual bleeding. "normal" menstrual bleeding usually lasts 3-7 days. The average woman bleeds 80cc (about 17 teaspoons) during a menstrual period.