This is like a Hrishikesh Mukherjee movie set in contemporary times. Ashwni Dhir, the director, does a nice job in giving lessons in Indian cultural, capture the urban lifestyle and all the while tickle the funny bone. Maybe, just maybe, a few moments, it was bordering preachy, but it never crosses the limits.
All the three main cast - Konkana, Ajay and Paresh - have given a nice measured performance.
The movie is about a couple with small kid who receive an unannounced guest. Everything seems fine, till the couple realize that the guest is in no hurry to leave. To add to their misery, he is a simpleton with no exposure to urban sophistication. The couple use a variety of methods to eject the guest out, but meet with failure every time. However, in the end they realize their folly and understand the valuable contributions he has made.
If you are looking for a movie that will entertain you and also teach a lesson about hospitality, watch it. I particularly loved the bit where Ajay takes Paresh to the shooting spot where the latter takes fascination for Viju Khote! Athithi Tum Kab Dekhoge!