"Modiji will be arriving here on September 25 to take part in Karyakarta Mahakumbh," said state unit BJP president Narendra Singh Tomar.
He was speaking to reporters after a BJP meeting was inaugurated by the Leader of Opposition in Lok Sabha Sushma Swaraj earlier in the day.
Tomar said the September 25 conclave will be held to mark the birth anniversary of Pandit Deen Dayal Upadhyaya, one of the prominent leaders of Bharatiya Jana Sangh, the forerunner of the present day Bharatiya Janata Party.
He said Chouhan had already clarified his position on the issue.
"Any decision on the issue of declaring Modi as prime ministerial candidate will be taken by BJP's Parliamentary Board and whatever the decision it will be acceptable to all," Tomar said.
When asked if Modi's official anointment for the top job would have any bearing on BJP going to polls later this year in Madhya Pradesh, Tomar quipped, "People will come to know the difference when it (the decision on Modi) will be taken".