Salabhog tax was meant for educational purposes.

Explanation:
Salabhog was a tax imposed in ancient India during the medieval period. It was primarily meant for educational purposes, specifically to support the running and maintenance of educational institutions.

Salabhog Tax:
Salabhog tax was levied on the income derived from agricultural lands and was collected by the state. The tax was usually a fixed percentage of the agricultural produce or income. The revenue collected from this tax was used to support educational institutions such as schools, colleges, and universities.

Importance of Education:
Education has always been considered a crucial aspect of society. It helps in the overall development of individuals and contributes to the progress of a nation. In ancient times, educational institutions played a vital role in imparting knowledge, skills, and values to the younger generation.

Role of Salabhog Tax:
The imposition of Salabhog tax helped in the establishment, maintenance, and growth of educational institutions. The revenue generated from this tax was utilized to support these institutions, including the payment of salaries to teachers, infrastructure development, and procurement of educational resources.

Significance:
The Salabhog tax exemplifies the importance given to education in ancient India. It highlights the efforts made by the rulers and the society to promote learning and knowledge dissemination. The tax served as a means to ensure the availability and accessibility of educational opportunities to the masses.

Conclusion:
Among the given options, Salabhog tax was the tax specifically intended for educational purposes. It was collected from agricultural income and used to support the functioning of educational institutions. This tax exemplifies the significance given to education in ancient times and the efforts made to promote learning in society.