Wikipedia lists plays, novels and TV series among formats of fiction:
Traditionally, fiction includes novels, short stories, fables, legends, myths, fairy tales, epic and narrative poetry, plays (including operas, musicals, dramas, puppet plays, and various kinds of theatrical dances). However, fiction may also encompass comic books, and many animated cartoons, stop motions, anime, manga, films, video games, radio programs, television programs (comedies and dramas), etc.
Now these two questions seem to be based on plays written by an acharya:
- Do Rama's sacrifical posts still exist in Ayodhya?
- What scriptures describe juice coming from Ganesha's cheeks covering Kailash?
OP here assumes statements made by characters in a play to be true and then asks for scriptures supporting these statements.
Similarly, here are a couple that are based on the StarPlus Mahabharat TV series:
- How did Satyavati die and how old was she at the time?
- Who said this "suta putra" quote about Karna and what does it mean?
- Did Nakula and Sahadeva really treat Karna after donating his armour?
Should we allow these type of questions?
If yes, can one also simply quote a line from an Amish Tripathi novel (which are usually based on characters from Hindu scripture) and ask which scripture contains it?