One of my friends appeared for the entrance test for BA at Patna University. According to him, questions asked in the entrance test are quite easy. You can score well even with 15-20 days of preparation. Here are some tips on how you can prepare for the examination.

• Focus mainly on your language subjects, Poultry, History, Geography, Sociology, Reasoning, and GK. Make sure that your concepts are clear. 
• Read any good books on GK like Lucent.
• Study your 10th and 12th textbooks on History, Geography, and Civics. 

Hope this gives you an idea about how to prepare for the examination.