Your rank of 30186 in the BC category means that securing admission to the most competitive branches like Computer Science Engineering (CSE) in top-tier colleges might be challenging, as the expected closing ranks for BC category in such colleges tend to be lower (e.g., 6,000-14,000 for BC-A in top government colleges or 18,000-25,000 in Tier-2 private colleges for CSE).

However, you may have better chances in other engineering streams like Electronics & Communication Engineering (ECE) or Electrical & Electronics Engineering (EEE).

Good luck!!