Ideally being from Jharkhand State, with EWS Advantage, securing anywhere above 91-93 Percentile in JEE Main, you have fair chances of securing a seat in BIT Sindri under Jharkhand State Engineering Counselling. For 93 Percentile, you must target securing atleast between 105-115+/300 in JEE Main. For better prospects and chances, I would suggest you to target higher between 120-140, for excellent prospects during Counselling.