The correct answer is Azimabad.
Azimabad was the capital of the Mughal province of Bihar during the medieval period. It was founded by the Mughal emperor Aurangzeb in 1610 and named after his son Azam Shah. The city was a major center of Persian education and culture. It was home to many madrasas, or Islamic schools, and libraries. The city was also a center of trade and commerce.
Hajipur is a city in the Indian state of Bihar. It is located on the banks of the Ganges River, about 20 kilometers from Patna. The city was founded by the Mughal emperor Akbar in the 16th century. It was an important center of trade and commerce during the Mughal period.
Maner is a town in the Indian state of Bihar. It is located about 20 kilometers from Patna. The town is home to a famous Sufi shrine, the Dargah of Hazrat Shah Rukn-ud-Din. The shrine is a popular pilgrimage destination for Muslims from all over India.
Bihta is a town in the Indian state of Bihar. It is located about 30 kilometers from Patna. The town is home to a number of historical monuments, including the ruins of a 16th-century Mughal fort.
In conclusion, the biggest centre of Persian education in Patna during medieval period was Azimabad.