I am targeting snap , I have 2 years gap year after graduation. 10 th - 82% 12 th - 84 % CGPA - 6 . I was a student of ssc , but now I want to do MBA . so if I manage to bring 90 percentile, will I get good colleges , and will doing MBA worthy . I am afraid of lay-off sir , and also I have weak community skills . what are the area's i should start focusing on , like which certifications should I complete .

Using your SSC background, You can easily target 98+ percentile in SNAP due to its focus on solving questions with speed which is similar to SSC.
You have time to work on you communication skills, START TODAY!!!
Join some NGO or communities where you'll push your soft skills.
You can do certifications in domains like marketing to get some internship experience before getting into a B-School.
Keep practicing and strengthen your concepts. ALL THE BEST!!!!