Complex sentence: However, the stories of the trials at the Red Fort filtered through, and authorities observed with alarm the turnaround in the perception of Azad Hind movement from traitors and collaborators to patriots.
Split into simpler sentences: However, the stories of the trials at the Red Fort filtered through. The Raj authorities observed with alarm the turnaround in the perception of "Azad Hind" movement from traitors and collaborators to patriots.