While Maneka Gandhi chose to look away from her estranged niece, Priyanka Gandhi waved out - onlookers say that she waved to the crowds while Congress sources say that she waved out to her aunt.
Within minutes, the police cleared the road block and Maneka Gandhi's convoy moved on.
Later, when asked, Maneka Gandhi refused to comment on Priyanka Gandhi's presence in her constituency.
Priyanka Gandhi, however, told reporters that she was campaigning in favour of her party candidate and not against anyone.
The Gandhis have avoided campaigning against Maneka Gandhi and her son Varun Gandhi.
In 2014, when Varun Gandhi was contesting from Sultanpur, Priyanka Gandhi had only held a workers' meeting in Sultanpur, a video of which later went viral.