The children of the late legendary classical vocalist Bhimsen Joshi are locked in a legal battle with his eldest son Raghvendra challenging his will.

Raghvendra (69), the son of Joshi's first wife Sunanda, has claimed that his father was 86 years old and not of sound mind due to illness and hospitalisation for brain tumour for over a month before he purportedly signed his will on September 22, 2008.