You have variety of courses to opt for after science stream.

MBBS.

BAMS (Ayurvedic)

BHMS (Homoeopathy)

BUMS (Unani)

BDS.

Bachelor of Veterinary Science & Animal Husbandry (B.VSc AH)

Bachelor of Naturopathy & Yogic Science (BNYS)

Bachelor of Physiotherapy.

Apart from science stream

Physical Education (BPE)

Mass Communication and Journalism

BFA Performing Arts (music/dance)

Business Administration and Management Studies (BBA, BMS- 3 years)

Social Work (BSW- 3 years)

Law (Integrated Masters in Law Course-5 year; LLB- 3years)

Hotel Management (BA/BSc)

Designing Courses (Interior design, product design, etc. Diploma or BSc)

Mass-media/ Journalism Courses (BA, BMM)

Diploma Courses (polytechnic, merchant navy, event management, hospitality, etc.)

All Competitive exams (civil service Exam, banking exams after graduation in any field). Eligibility: 12th Science/Commerce/Arts with minimum 55%

This is the complete list of courses after 12th. you can choose the one you are interested in.

Good Luck.