What should I do after class 12th except Doctor and Engineer in Delhi.

You can go for below courses

Courses after 12th Science with PCB:

B.Sc. Degree
BA
LLB (Bachelor of Law)
Education/ Teaching
Travel & Tourism Courses
Environmental Science
Fashion Technology
Hotel Management
Designing Courses
Media/ Journalism Courses
Film/ Television Courses
CA Program
ICWA Program
CS Program

Courses after 12th science with PCM:

Integrated M.Sc
BCA
B.Com
Defence (Navy, Army, Air force)
B.Sc. Degree
B.Des
BA
LLB (Bachelor of Law)
Education/ Teaching
Travel & Tourism Courses
Environmental Science
Fashion Technology
Hotel Management
Designing Courses
Media/ Journalism Courses
Film/ Television Courses
CA Program
ICWA Program
CS Program

Diploma courses after 12th Science:

Diploma in Beauty Culture & Hair Dressing
Computer Hardware
Fashion Designing  DFD
Dress Designing  DDD
Drawing and Painting
Cutting and Tailoring
Web Designing
Graphic Designing
Information Technology
Application Software Development  DASD
Textile Designing  DTD
Hospital & Health Care Management
Physical Medicine and Rehabilitation
Film Arts & A/V Editing
Animation and Multimedia
Print Media Journalism & Communications
Film Making & Digital Video Production
Mass Communication
Mass Media and Creative Writing
Animation Film Making
Air Hostess
Air Crew
Event Management
HR Training
Computer Courses
Foreign Language Courses