New Delhi, Jan 9 (ANI): Bharatiya Janata party's prime ministerial candidate Narendra Modi on Thursday mocked at Prime Minister Manmohan Singh while addressing overseas Indians at the ongoing Pravasi Bharatiya Diwas meet. In an apparent reference to the upcoming general elections, Modi said it will take another few months for good days to usher in. Dr. Singh on Wednesday had assured Indian diaspora that the country's economy is heading for good times, and there is no reason to despair about India's present or worry about its future.