Hello,

To appear for JEE Advanced you must have qualified in JEE Main 2021. The minimum cut off percentile for JEE Main 2021 is yet to announced. Last year the qualifying cut off percentile was  50.1760245 for SC category. This year it is expected to be in between 50-55 percentile. Considering the previous year cut off you have chances to qualify in JEE Main 2021 and appear for JEE Advanced. You may start your preparation for JEE Advanced. Cut off depends on the total number of candidates appeared, difficulty level of examination and total number of seats available etc. It may increase or decrease depending on these factors.