The official StarPlus YouTube channel occasionally uploads full episodes, but they are often non-chronological or lower quality. While you can find clips and highlights, for the full experience, a streaming service is superior.
While the whole series is fun, make sure you don’t skip these arcs:
(Official episode titles and synopses are available through broadcasters’ episode guides and streaming platforms; this post intentionally keeps synopses concise to avoid spoilers.) Watch Sumit Sambhal Lega All Episodes
Okay, you’re sold. Where can you find this lost treasure?
Since the show originally aired in 2015-16, it isn't always easy to find on the front page of major apps. Here is the current status: Where can you find this lost treasure
The official streaming home for STAR Plus shows is Disney+ Hotstar. Most seasons and episodes of Sumit Sambhal Lega are available here.
With the merger of Viacom18 and Disney assets, some older StarPlus content has migrated to JioCinema. However, as of this writing, the primary stable home remains Disney+ Hotstar. Most seasons and episodes of Sumit Sambhal Lega
Pro Tip: Always use the official app to support the creators and avoid piracy. Piracy sites offering "Sumit Sambhal Lega all episodes download" often come with malware and poor video resolution.