The answer to your question is:

Yes, you can apply for SSC CGL (Staff Selection Commission Combined Graduate Level) even if you have completed your graduation in a technical field. SSC CGL is a highly competitive examination conducted by the Staff Selection Commission to recruit candidates for various Group B and Group C posts in the ministries, departments, and organizations of the Government of India. The eligibility criteria for SSC CGL include educational qualifications, age limit, and nationality.

Educational Qualifications:
The educational qualification required for SSC CGL is a bachelor's degree from a recognized university or institute. The degree can be in any discipline, including technical fields such as engineering, computer science, etc. Therefore, if you have completed your graduation in a technical field, you are eligible to apply for SSC CGL.

Age Limit:
The age limit for SSC CGL varies depending on the post applied for. Generally, the minimum age limit is 18 years, and the maximum age limit is 32 years. However, there are relaxations in the upper age limit for candidates belonging to reserved categories and other special categories as per the government rules.

Nationality:
To be eligible for SSC CGL, you must be either:
- A citizen of India, or
- A subject of Nepal/Bhutan, or
- A Tibetan refugee who came to India before January 1, 1962, with the intention of permanently settling in India, or
- A person of Indian origin who has migrated from Pakistan, Burma, Sri Lanka, East African countries of Kenya, Uganda, the United Republic of Tanzania, Zambia, Malawi, Zaire, Ethiopia, and Vietnam with the intention of permanently settling in India.

Conclusion:
In conclusion, if you have completed your graduation in a technical field, you can definitely apply for SSC CGL. It is important to fulfill the eligibility criteria, including educational qualifications, age limit, and nationality. SSC CGL provides a great opportunity to build a career in the government sector, and candidates from all disciplines, including technical fields, are eligible to apply.