Hello aspirant,
Bachelor of Science in Nursing or B.Sc Nursing is a 4-year undergraduate course. B.Sc Nursing admission is based on entrance exams held between April-June.The minimum eligibility criterion for pursuing this course is the successful completion of 10+2 level of education in Physics, Chemistry, and Biology.
B.Sc. Nursing admission is purely based on entrance exams held between April-June. Candidates can fill the application form in both online and offline mode.Many colleges in India offer this course as a branch of medicine. Some of the top colleges are mentioned below.

• Christian Medical College, Vellore
• Sri Ramachandra University, Chennai
• KLE University, Belgaum
• Symbiosis International University, Pune
• Sharda University, Greater Noida
• Bharati Vidyapeeth Deemed University, Pune

The admission are almost done in most of the colleges, though I'll suggest you to personally visit few colleges which might help you to get a seat. Or join some private college which has direct admission. Also every college provides scholarship program for its students. But it differs from college to college. So you'll have to enquire in the college itself for scholarship.
All the best