If you have pass 11 Standard with Biology or Mathematics subject than you should first complete your 12th grade examination . after 12th you will get many options you will get many better career options.

Courses after 11th are :
Polytechnic Diploma Courses
Diploma in Textile Technology
Diploma in Secretarial Practice
Diploma in Mechatronics
Diploma in Commercial Practice (English)
Diploma in Chemical
Diploma in Business Administration
Diploma in Bio Medical
Diploma in Automobile
Diploma in Architecture
Diploma in Agricultural
Diploma in Electronics & Communication
Diploma in Aeronautical
Diploma in Apparel Design
Diploma in Architecture Assistantship
Diploma in Handloom Technology
Diploma in Instrumentation Technology
Diploma in Library Science
Diploma in Mechanical
Diploma in Modern Office Practice
Diploma in Telecommunication
Diploma in Biotechnology
Diploma in Ceramic Technology
Diploma in Civil
Diploma in Computer Science
Diploma in Electrical & Electronics
Diploma in Marine
Diploma in Interior Decoration
Diploma in Industrial & Production
Diploma in Fashion Technology
Diploma in Electrical

Some best Courses after 12th are ::
B.Sc., Computer Science
B.Sc.,Mathematics
B.Sc.,Physics
B.Sc.,Chemistry
BCA (computer Application)
BBA (Bachelor of Business Administration)
B.Com (Commerce)
B.Sc., Animation
B.Finance
MBBS
BDS
B tech