What is the fine-grained topic of the following text: After ‘Tareefan’, we have another celebration number, ‘Bhangra Ta Sajda’, composed by Sashwat Sachdev, who gives a groovy and contemporary twist to the age old Punjabi folk song ‘Boliyaan’ which is a part of almost all Punjabi marriages, with in-sync lyrics by Gourav Solanki and rendered by Neha Kakkar, Romy, Surya Ranganathan and Sashwat. Only return the topic.
The composition of the song 'Bhangra Ta Sajda' in a contemporary style.