Anwarul was elected as the Upazila Adhyaksh in 2009. He then got the party's nomination in the 2014 elections and became a member of Parliament for the first time. Since then, he has been the MP of Jhenaidah-4 for three consecutive terms. In the affidavit submitted to the Election Commission before the 12th national election, he had declared his profession as business and agriculture.
Various sources have revealed that the MP has a Doren Transport business, which plies the Jashore-Khulna route. But the affidavit submitted to the Election Commission makes no mention of him or his family owning any buses. But it does mention that his wife owns four trucks.
Anwarul Azim was the vice president of Bangladesh Road Transport Owners Association, the apex body of transport owners. The association is headed by expelled Jatiya Party leader Mashiur Rahman and Dhaka city Awami League vice president Khandaker Inayat Ullah is the general secretary. Anwarul was also the general secretary of Kaliganj Upazila Motor Owners Association. Transport sector sources say he had a strong control over the transport business in the area.
According to his affidavit, the MP and his wife have around 13 million Taka (1 crore 30 lakh Taka) in cash. About 12.8 million Taka (1 crore 28 lakh Taka) is deposited in banks and financial institutions.
Anwarul Azim's immovable assets include 33 bighas of agricultural land, worth around 4.3 million taka (43 lakh taka). His wife has 24.5 decimel agricultural land in her name. The MP has 129 decimel non-agricultural land in his name. His wife has 179 decimel land in her name. The value of their combined non-agricultural land is shown to be more than 8.2 million taka (82 lakh taka). He has a four-storey house in Kaliganj Municipality area. The affidavit mentions that he has a loan of 11.7 million taka (1 crore 17 lakh taka) from Janata Bank Kaliganj branch.
According to the affidavit, Anwarul Azim had 21 cases registered against him related to murder, smuggling and other crimes. He was either pardoned or acquitted in all these cases.
Anwarul Azim used to earn around 200,000 taka annually from farming. He and his family earned around 3.8 million taka (38 lakh taka) annually from business. Apart from this, he also received an allowance of around 2.4 million taka (24 lakh taka) annually as a member of Parliament.