A 28-year-old man, who, along with his wife, had taken part in Aamir Khan's TV show Satyamev Jayate, was shot dead in Bulandshahr.
The couple been part of the TV show's episode on honour killing. The wife has claimed that her husband has been killed by her family members.
Abdul Hakim, and Mehwish, eloped two years ago after marrying secretly in June 2009. Mehwish said her family was opposed to the match because Hakim was poor and belonged to the "lower" Fakir community, reports said.
Watch the full episode of Satyamev Jayate here:
Police have reportedly arrested two persons. Three others, including the prime suspect, are absconding.
Mehwish has claimed her family was behind the murder.
"They have killed my husband, they will kill me now. I am nine months pregnant. My husband would have been alive if police protection was provided," the woman, Mehwish, 26, told CNN IBN.
The police has dismissed her theory saying it was the outcome of a personal feud.
Reacting to the incident, Aamir Khan said he would speak to the authorities concerned to ensure safety of the rest of the family.
"The culprits must be brought to book," he said.