Could you please guide me if I can use the same old videos for march and June exams for SBL to prepare for September intake for SBL or do I need to have new updated videos and material? And will someone can prepare within 1 month if someone get 45 marks at first attempt?
The same meterial is substantially OK. Look at the very end of the Sept syllabus to see syllabus changes and take heed of additions and deletions only.
Sorry not hear about your 45 mark. Assuming you know the theory, your revision should be question based and a month should be OK.