Dr. Baldev Chaddha (Anu Kapoor), a well qualified fertility expert, runs a fertility clinic and a sperm bank in Dariyaganj, New Delhi, that guarantees a high quality and specialized sperm for the purpose. Unfortunately he has more failed cases to his credit than successes. A healthy, high performing donor is the need of the hour. Vicky Arora (Ayushmann Khurrana), a young, good-looking, Punjabi boy from Lajpat Nagar, is the only son and of no financial support to Dolly, a widow, who runs a small beauty parlor from home. A chance encounter between them convinces Dr. Chaddha that Vicky could be THE donor he has been looking for. Dr. Chaddha persuades him to become a donor, but in the meantime Vicky has found his love interest in Ashima Roy (Yami Gautam), a pretty Bengali girl. Will Vicky's past as a sperm donor come in the way of true love?