How is an Indian slide guitar tuned?

No single standard tuning appears in the sources for the Indian slide guitar; tunings vary by player. Brij Bhushan Kabra tuned his main strings D-A-D-A, while a 2020 Premier Guitar lesson uses open C, C-G-C-E-G-C. The sympathetic tarab strings are tuned to the notes of the raga, and players retune them for each raga.