Bulama said: "Two weeks ago, Boko Haram insurgents attacked Badu village but the attack was repelled by the villagers and members of the vigilante group".
The TV station quoted a local government chairman, Mohammed Bulama, as saying that the terrorists had murdered another 44 people when they tried to regroup to defend themselves, following an initial killing of 23 mourners.
Dozens more bodies were discovered on Sunday following the assault a day before by gunmen on a village close to the regional capital, Maiduguri.
Ten people were also injured, eight critically, and were receiving treatment at a local hospital, he said.
There was no immediate claim of responsibility, but the Boko Haram group and rival Islamic State in West Africa (ISWA) splinter group have often carried out attacks in the area.
Around 27,000 people have been killed in the decade-long Takfiri terrorism which has spilled over into neighboring Chad, Niger and Cameroon and forced more than two million people to flee their homes. The country's president has vowed to hunt down the perpetrators, widely suspected to be Boko Haram militants.
The men were returning to Badu Kuluwu from nearby Goni Abachari village where they had attended funeral prayers for a relative, said Mustapha.
Shekau's group tends to hit softer targets including civilians, while the Islamic State West Africa Province (ISWAP) has since past year ratcheted up its campaign against the Nigerian military.
A resident told TheCable that Boko Haram fighters had invaded the town on motorbikes and gun trucks but troops responded immediately.