"I can only tell you that it is easy to start a political party. But there is a great difficulty in sustaining it," he said.
The BJP leader added that the country had an alternative in the form of NDA. "We have done excellent and commendable work when we were in power. The country needs a change now," he added.
He, however, ruled out the possibility that Kejriwal's party would prove as an optimal alternative. "I don't feel that someone will suddenly become an alternative. It is not so easy," Naidu said.