MP4 is the most compatible across Android and iOS.
It looks like you’re searching for a way to watch or download the movie (also known as Naan Sirithal ? — let’s clarify) in Hindi dubbed format, described as “portable” (likely meaning small file size for phones or offline use).
"Thattukoledey" is a 2018 Indian Tamil-language comedy drama film directed by Aadhavan. The movie stars Santhosh, Ashwini Dhir, and Gowthami Kapoor in lead roles.
The cast delivers raw, believable acting.
offer extensive libraries of South Indian movies dubbed in Hindi for free. Amazon MX Player