What is the fine-grained topic of the following text: Officers of Sindh government including Shireen Narejo, Abdul Aleem Shaikh, Ashfaque Soomro, Anjum Fatima, Rafia Haleem and other officers from grade 17 to 19 including Additional Secretaries, Deputy Secretaries and Section Officers took part in the protest rally. Only return the topic.
Sindh government officers participating in a protest rally.