Saajan (lrrfan Khan), a Mumbai office worker nearing retirement is deIivered the wrong lunch by a dabbawaIa. Young housewife lla (Nimrat Kaur) had intended it for her emotionaIIy indifferent husband. To Saajan's surprise, the food is a vast improvement on his usuaI meaI. When he finds a note from lIa enclosed with another meal, he decides to write back. So begins Ritesh Batra's exquisite comedy-drama.