hi,

there is multiple bba entrance exams held every year in India, LIKE ipmat, dujat, symbiosis bba entrance test, NPAT for NMIMS mumbai. however if you want to take delhi university affiliated colleges you have to appear in dujat. TO Tell the truth if you want to seek admission in tier 1 college of India, you have to give entrances exams and have to clear it. also have to fight to secure a seat. now I suggest also to apply individual colleges which comes under tier 1 and have good placement and academics. it is always a best option to apply for multiple sources to  admission. after that you may decide the best among it and take final decision.