Fill in the blanks by choosing the most suitable word given below: Much that…

To fill the blank, we need a word that describes something that was once common in ancient Indian culture but has now disappeared. Let's analyze each option: A. 'Useless' means without value. This does not fit because the sentence is about something that existed and has now perished, not about its usefulness. B. 'Violent' refers to aggressive behavior. This is not appropriate for describing cultural elements that have disappeared. C. 'Religious' is too specific. While some religious practices may have faded, the sentence refers to a broader cultural aspect. D. 'Prevalent' means widespread or common. This fits perfectly because it describes something that was once common in ancient Indian culture and has now perished. Therefore, the most suitable word is 'prevalent'.