Explanation:

- Option 1: Open online courses initiative

- SWAYAM is a program initiated by the Government of India.

- It aims to provide free online courses from top institutions.

- It is designed to make education accessible for everyone, covering various subjects.

- Option 2: Scholarship scheme for differently abled children

- This is aimed at supporting children with disabilities through financial aid.

- It focuses on empowering these children with educational opportunities.

- Option 3: Scheme to encourage participation of girls in technical education

- This initiative targets increasing the enrollment of girls in STEM fields.

- It offers incentives and support for female students.

- Option 4: Skill development scheme for those engaged in traditional crafts and arts

- This scheme helps artisans and craftsmen enhance their skills.

- It focuses on preserving traditional techniques and promoting livelihoods.

Option 1: Open online courses initiative is the correct answer.