Which district was the center for the Raniparaj movement among tribal communities?

The correct answer is Panchmahal.

The Raniparaj movement was a tribal uprising that took place in the Panchmahal district of Gujarat in the early 20th century. The movement was led by a tribal woman named Rani Lakshmibai, who fought against the British colonial government for the rights of tribal people. The Raniparaj movement was successful in achieving some of its goals, including the establishment of a tribal school and the recognition of tribal land rights.

The other options are incorrect because they are not districts in Gujarat. Surat is a city in Gujarat, while Bharuch and Sabarkantha are districts in Gujarat.