Will you please tell me whether SSC failed Student directly take admission in XII Class or not???

No, you can’t take admission directly in 12th standard after failed in SSC. You have to pass 10th class first after that you have to take admission in11th standard and then in 12th.

After passing 1oth exam, you can also go for various diploma courses, some of them are listed below

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