Tamasha is a traditional Marathi folk-theatre form that combines song, dance, and dialogue, and it is often staged in villages of Maharashtra during the Shimga festival, which is the local name for Holika or Holi celebrations.

This makes statement 1 correct, as the timing of many Tamasha performances is closely tied to this festive season when village communities gather for entertainment.

The Kolhati community has traditionally been closely associated with Tamasha performances, with many performers, especially dancers and acrobats within Tamasha troupes, coming from this community.

This makes statement 2 correct as well, since the Kolhatis' involvement is a well-documented part of the social history of this art form.

Since both statements accurately describe recognised aspects of Tamasha's tradition and social base, both are correct.

Hence, the answer is Both 1 & 2 correct.