Giriraj Singh said that Nitish has insulted BJP by reacting so harshly.
Narendra Modi is upset over the harsh outbursts of Nitish Kumar, said the sources. Modi has threatened to walk out of the BJP's national executive meet in Patna.
The senior BJP leaders are trying to soothe Modi, as he threatens to walk out over Nitish snub and they are trying to convince him to attend the Patna rally.
JD(U) President Sharad Yadav said that his party had old ties with BJP and the ad row was an unnecessary controversy.