He was reacting to questions on Sinha's favouring Modi as the party's prime ministerial candidate in 2014 general elections.
The BJP chief said "I am on tour right now and I will read the statement and comment (of Sinha) and only after that can I say."
Sinha has said "there is a strong demand from common people and workers that Narendra Modi should be declared as the PM candidate as this will benefit the party.
Sinha's comments about Modi come a day after the Gujarat chief minister had held a two-hour discussion with Rajnath Singh in Nagpur on Sunday and discussed the next Lok Sabha polls.
Holding that BJP has many leaders who can lead the party as well as the nation, senior BJP leader M Venkaiah Naidu said the party will take a call on the issue at an apropriate time.
"The party has to take the decision. I only appeal to all the people concerned to wait for the decision of the party and also final decision of NDA. To my knowledge, there is no controversy in BJP for prime ministership. There are people with enugh experience and also capabities to lead the party and lead the nation," Naidu told reporters.
"We will discuss the matter at an appropriate time...parties have to discuss the issue and take the decision that is known to all."