Hey!! I need ya help.. i'm an indian!!! N my bro in law is an oz.. So is der any way that i can migrate through him??

Hey!:D! i'm an indian national, my brother in law is an australian citizen & now now i'm willing to migrate to australia.. i tried getting info from few cunsultancies.. they told me yea,according to the visa sub class 115. but i'm not sure abt this and little terrified to lodge my application:?:...