US President Barack Obama who will be on a 3-day trip to India from January 25 for attending the January 26 Republic Day celebration in which Obama is the chief guest is reported to be joining Indian Prime Minister Narendra Modi in a special edition of his monthly radio address 'Mann ki Baat' a day after the Republic Day celebration. This information has been tweeted by Modi himself. So, the next 'Mann ki Baat' radio programme has some special significance not only to Indians but also to the whole world.