Former prime minister Manmohan Singh today accused Prime Minister Narendra Modi of spreading falsehood to score political points. <br/><br/>In a video message, Dr Singh reiterated his previous statement over Mr Modi remarks about the collusion of Congress leaders with Pakistan on Gujarat polls. <br/><br/>He said it is unfair to question the nationalism of public servants. Dr Singh said he hopes that the prime minister will show maturity and gravitas, as expected of the high office he holds. <br/><br/>He sought an apology from Mr Modi for what he called baseless allegations against him and his party.