Bollywood star Aishwarya Rai has been invited to kick-start a campaign of immunisation against polio in Pakistan.
Rai is Bollywood's most popular actress
The Indian actress and Pakistan pop star Jawad Ahmed are acting as ambassadors for the polio campaign in each others' countries.
Functions will be held in Pakistan and India highlighting the need to wipe out the disease.
Despite Bollywood films being banned in Pakistan, there is no ban on film stars entering the country.
Rai and Bollywood superstar Amitabh Bachchan are high-profile ambassadors for the anti-polio campaign, appearing in TV and print advertisments.
Rai and singer Jawad Ahmed were selected as ambassadors for the next stage in the campaign by Indian and Pakistani health ministers at a World Heath Organisation meeting.
India and Pakistan are among the countries with the highest number of cases of polio.
"We have to fight together against the virus which has crippled many children in India and Pakistan. Both the countries plan to eradicate the disease by December 2006," Pakistan health minister Mohammad Nasir Khan the Times of India.