Original sentence: Ershad joined 4 Party Alliance at the end of BNP term of 2001–06 after meetings with Tarique and Babar at his (Ershad) Residence, which was followed by meeting with Khaleda Zia at her (Zia) Cantonment's Mainul Road House
Edited sentence: Ershad has been considered as an unpredictable character in Bangladesh politics.He joined 4 Party Alliance at the end of BNP term of 2001–06 after meetings with Tarique and Babar at his (Ershad) Residence, which was followed by meeting with Khaleda Zia at her (Zia) Cantonment's Mainul Road House