No, it's not a proper phrase in standard English. It seems to be a jumbled combination of words. In proper English, we would expect a more grammatically correct and clear construction.
There are many other interesting aspects of Hindi culture like the beautiful Hindi music, historical architecture, which are much more worthy of exploration than any inappropriate content.
It's not entirely clear without more context. 'Sex' refers to sexual activities in English. 'Hindi' is a language. So perhaps it could be a sex - related story in Hindi, but it's very ambiguous.
No, it's not appropriate. We should promote a positive and healthy cultural environment. Content like this is not only unethical but may also have a negative impact on the psychological health of those exposed to it.
No. 'Phone sex' involves inappropriate and vulgar content which is not a part of mainstream or common Hindi literature. Hindi literature mainly focuses on themes like love, family, social issues, mythology, and cultural values.
Yes, there are many. You can look for Hindi folk tales which are full of wisdom and cultural values. For example, the stories of Birbal are both entertaining and educational.
There are many alternatives. For example, Hindi audiobooks of classic literature like the works of Munshi Premchand. His stories are rich in Indian culture and values.