One of my favourites, others being "Tum Bin" for spreading love care and
good intentions, "No Entry" for unbridled laughter, "Ranjhana" for pure repentance, and "Swadesh' for yearning to do something good for your country, "Jab We Met" is for watching when you are feeling low or lonely. It leaves you feeling warm and smiling inside, and regenerates confidence that that good do feelings triumph in the long run.
These movies I watch at least once every year. And OTT shows "The Family man" and "Panchayat". because good movies and shows do not come so often, we keep watching the oldies.