The Congress was making such a promise knowing fully well that they cannot implement it, he said, adding, "I must also say that it exposes the true 'secular' character of the party which aims to garner votes on the basis of religion."
Asked if he subscribed to the view that the current election campaign was the most polarised one in India's democratic history, Modi said that he agreed "in a way" that it is a polarised election but "the polarisation is of a different kind this time".
He said, "polarisation is inherent in a democracy. It is natural for people holding different viewpoints to think and vote differently. Per se it is not an undesirable thing. It is the kind of polarisation happening that matters".
The Gujarat Chief Minister was of the view that the polarisation in this election was between those who believed in the inclusive politics of development and good governance and against who believe in divisive politics of vote banks, caste and religion.
Asked if there was a "Modi wave" or an anti-Congress wave, or both, the BJP leader replied, "I think it is both. There is a very strong anti-Congress wave together with an equally strong wave for the BJP and its NDA partners".
Describing the elections as "extraordinary and unprecedented", he elaborated that probably it was a first time that a strong anti-incumbency feeling was accompanied by an equally strong desire for change.
Modi declined to answer a question on the post-Godhra Gujarat riots of 2002. However, replying to another question, Modi said his opponents had not been able to find any serious allegations of corruption, nepotism or incompetence against him.
Asked if he would like to assure Muslims that they should feel safe and secure and that they will not be discriminated against by a government led by him, the BJP leader said that there was no reason for anybody to feel unsafe and insecure, be it Hindus or Muslims.
"If anybody should feel insecure, it is the parties who treat Muslims as vote banks and do nothing for their development. Their politics has reached its expiry date. Such parties better improve or they face extinction," he said.
Modi emphasised that there was no reason for anyone to feel unsafe and insecure under a BJP government.
"We are committed to the safety, security and development of 125 crore Indians which includes all Hindus, Muslims, Sikhs, Christians etc. Our motto is 'sabka saath sabka vikas' (everybody's support, everybody's development)," he added.
Asked about his recent reference to 'Ganga-Jamuni tehzeeb'(composite culture) at the time of filing his nominations from Varanasi, Modi said that this was his message of India First - Let us unite together rising above caste and religion and let us all work together for development and prosperity.