Meru's rock-hewn tomb was restored by the Polish Centre for Mediterranean Archaeology at the University of Warsaw and Egypt's Supreme Council of Antiquities.
"This is the first site from such an early period in Western Thebes to be made accessible to visitors," the ministry statement quoted Fathi Yassin, General Director of Antiquities in Upper Egypt, as saying.
The tomb, which faced the procession avenue to Mentuhotep II's temple, contains a corridor leading to an offering chapel with a niche for a statue of the deceased. A burial shaft descends to a burial chamber with a sarcophagus.
"This is the only decorated room of the tomb, with an unusual decoration of painting on lime plaster," Yassin said.
Meru's tomb had been known since at least the mid-19th century, according to the Polish Egyptian archaeological mission. Italian conservators cleaned some of the wall paintings in 1996.
Some of the Middle Kingdom's most prominent officials were buried at North Asasif, the statement said.
