British pathologists were unable to carry out their own post-mortem tests on Gurkiren's body because of the missing organs, including the heart, brain and liver.

Indian authorities had admitted the organs were retained at Government Medical College at Rajendra Hospital in Patiala for post-mortem tests.

But fresh tests to determine how Gurkiren died may be futile as it is thought the organs were embalmed.

Embalming is carried out to avoid the spread of infection, but makes post-mortem tests on them unreliable.