Prime Minister Narendra Modi and US President Barack Obama have collaborated on a rare joint editorial that will be published in a US newspaper on Tuesday, the foreign ministry said today, describing the first talks between the two leaders at dinner on Monday as "convivial and comforting." President Obama greeted PM Modi in his language Gujarati, saying "Kem Chho Mr Prime Minister? (How are you?)" And Mr Modi responded in English with, "Thank you very much Mr President."