Which Indian cricketer has been appointed by the State Health Department as the brand ambassador for its brain health initiative to create awareness on brain health and mental health?

The correct answer is Robin Uthappa.

The Karnataka State Health Department, in association with NIMHANS (National Institute of Mental Health and Neuro-Sciences) and Niti Aayog, launched the Karnataka Brain Health Initiative (KaBHI) to create awareness about brain health and mental health issues. Indian cricketer Robin Uthappa was appointed as the brand ambassador for this initiative. Uthappa, who has publicly spoken about his own battles with depression, was chosen to help advocate for mental health and encourage early screening and treatment for neurological disorders.