The industry monitors downloads. If a studio sees that Asoka gets 5 million views on Filmyzilla Asoka links but only 1,000 paid rentals on YouTube, they assume there is no market for the film. Consequently, they will never invest in restoring it to 4K or re-releasing it in theaters. Piracy tells studios that niche classics are "worthless."
If you are looking for the 2001 film (starring Shah Rukh Khan and Kareena Kapoor), it is available through several official and legal platforms: 📺 Where to Watch Legally filmyzilla asoka