OUS Courses in Annamalai University

After 12th and I want to do BBA Marketing and Human Resources Management Course from Directorate of Distance Education / OUS (Open University System) of Annamalai University, Chennai so please give me details? Also give me list of other BBA Courses offered?

I have passed MA.Economics in OUS at Annamalai University- after that i went to MBA in Personnel Management at Madurai Kamaraj University - Now i want to do my PHD in Management. Shall i do it?

sir, i have completed MA(Sociology) under OUS scheme in 2005. Am I eligible to write SSC(CGL),IBPS(Clerk),IBPS(PO).. as they ask any degree as qualification.

i have completed M.A in OUS 2004, after i have completed B.A in 2015, now my M.A course is eligible for get incentives,
please do reply

Thanks
Immanuel