In my pdf and physical collection of books, the Nirnaya Sagara edition of the Mahābhāṣya of Patañjali goes only up to the Adhyāya 6 [Volume 5].  Were the Adhyāyas 7-8 ever published by the NSP?

Madhav M. Deshpande
Professor Emeritus, Sanskrit and Linguistics
University of Michigan, Ann Arbor, Michigan, USA
Senior Fellow, Oxford Center for Hindu Studies

[Residence: Campbell, California, USA]