Cremation
There is not instruction from Shariah. Every government should respect the sentiments of its community. The Muslims should try convey their feelings to the government. However, we never heard of such things.
Mostly Ahadith are not narrated with their context. To determine the context is a matter of research. We know that hadith doesn’t add anything new to corpus of Deen. Thefore we place them in the frame of Deen unless we find their context which always confirms that the saying of the prophet was in conformity with the established principles and teachings of Deen.