Mumbai, Dec 26: The death of Shiv Sena patriarch Bal Thackeray went on to become the biggest news in Maharashtra's political arena in 2012, during which two-time chief minister Vilasrao Deshmukh also passed away, the state secretariat caught fire and NCP strongman Ajit Pawar quit the Prithviraj Chavan-led ministry, only to rejoin it two months later.