Instagram is not "Indian," but the content on it is. The web version of Reels has become a de facto viral site.
Technically, YouTube is the elephant in the room. However, its "Shorts" section is getting patched better with their new "Explore" tab. best indian viral mms site patched
To understand the best platform, you must understand what "viral" means in India. On global sites, viral is a dance trend. On an Indian patched site, viral is a jugaad (life hack). Instagram is not "Indian," but the content on it is
Example: A video titled "How to clean a burnt pressure cooker using only Tamarind" (Lifestyle) shared by a random housewife in Indore gets 10 million views because it is patched with a comedy voice-over of a frustrated husband (Entertainment). However, its "Shorts" section is getting patched better
The algorithm on these patched sites rewards Utility + Humor. If you fix a problem and make people laugh, you go viral. If you only do one, you stagnate.