Pune police arrested 20-year-old Siya Goyal and her lover Chetan Chaudhary, for the murder of businessman Ketan Agarwal at Lohagad Fort.
CCTV footage showing Chaudhary wearing a heavy hoodie and headset in 33-degree Celsius heat raised suspicion and cracked the case.
Call detail records revealed thousands of conversations between Goyal and Chaudhary, establishing their conspiracy to eliminate Agarwal.