Texas abortion ban has got another lawsuit against it. The lawsuit has been filed in the state of Illinois on Tuesday after the opponents of a new Texas ban on most abortions were being thwarted by courts elsewhere for weeks in their efforts to block the nation's most restrictive abortion law.

The latest legal challenge came as the Joe Biden administration waited for a federal judge in Austin, Texas, to rule on a request to halt the law known as Senate Bill 8, which bans abortions in Texas once the cardiac activity is detected, usually around six weeks into the pregnancy. A hearing was held on Friday but there was no timetable for a decision.

Although courts have blocked similar measures in other places in the United States, the Texas law has been allowed to remain in place since early September because it uniquely leaves enforcement solely up to private citizens, who are entitled to at least $10,000 in damages if they prevail in a lawsuit against abortion providers.

A San Antonio doctor who admitted defying the law in a Washington Post opinion column last month was quickly sued but there is a catch in the lawsuit against him. He was not sued by anti-abortion advocates but instead by former attorneys in Illinois and Arkansas who oppose the law and are trying to force a court to weigh in.

The Center for Reproductive Rights is now asking a federal court in Illinois to consolidate the lawsuits against Dr Alan Braid and declare the law unconstitutional.

Last month, the Supreme Court of the United States did not rule on the constitutionality of the Texas law, but allowed it to remain in place.

In 1973, the US Supreme Court issued its Roe v. Wade ruling, which established a nationwide right to abortion at any point before a fetus can survive outside the womb, generally around 24 weeks.