With a JEE Main score of 54% and belonging to the SC category, you have a good chance of securing a B.Tech seat in several engineering colleges in Bangalore. It's important to understand that admission cutoffs vary each year based on factors like the number of applicants, the difficulty level of the exam, and the number of available seats. However, your SC category reservation provides a significant advantage.

Generally, for reserved categories like SC, the cutoff ranks for most colleges are lower compared to the general category. While it's difficult to pinpoint the exact closing ranks for 2025 right now, looking at previous years' data can give you a fair idea. Many colleges in Bangalore that accept JEE Main scores have specific reserved seats for SC category students.

Some of the colleges you might consider exploring include:

• Dr. Ambedkar Institute of Technology (AIT), Bangalore: This is a government-aided college with a good reputation and often has reasonable cutoffs for reserved categories.
• Bangalore Institute of Technology (BIT), Bangalore: BIT is another well-regarded college that admits students through JEE Main, and you should check their SC category-specific cutoffs.
• Dayananda Sagar University (DSU), Bangalore: While it's a private university, DSU also considers JEE Main scores and offers reservations as per government norms.
• RNS Institute of Technology (RNSIT), Bangalore: RNSIT is a popular choice, and you should check their admission criteria and previous year cutoff ranks for the SC category.
• New Horizon College of Engineering (NHCE), Bangalore: NHCE is another private college that considers JEE Main scores for admissions.

I hope this helps.