i want to undertake business as my career but i am confused bitween BBA , BBM , BMS , BBS?WHAT SHOULD I TAKE?

Hello, Management education at Graduation level has been given several names which you have mentioned here. You should not be looking at the name of the course but concentrate on the quality of the college, course content, Faculty, Placements etc. All the best! :)

All of them are same with different names, choose any one according to availability.