for appearing NEET EXAM is it necessary to repeat 12th board exam????i have secured 49.17% in 12th board from maharashtra state board and i have secured 38% in my NEET EXAM. i m from open cast so i want to repeat my 12th board exam so what should i do should repeat for my betterment of result by studying my previous portion or i should study new syllabus of maharashtra..???