Iyer, K.A. Subramania (ed.) (1963), Vākyapadīya with the commentary of Helārāja. Kāṇḍa 3 Part 1. Poona: Deccan College Postgraduate and Research Institute.

Texts

• Prakīrṇaprakāśa
  Helārāja's Prakīrṇaprakāśa is a commentary on the third book of the Vākyapadīya.
• Vākyapadīya
  The Vākyapadīya, a.k.a. Trikāṇḍī, is a set of around 2000 verses, divided in three books, treating the philosophy of Sanskrit grammar/philosophy of language. It is (one of) the most important works...

Authors

• Bhartṛhari
  Bhartṛhari's most famous work is the Vākyapadīya. He also wrote the Mahābhāṣyadīpikā, the oldest partially extant commentary on the Mahābhāṣya. Some also consider Bhartṛhari to be the author of a t...
• Helārāja
  Helārāja was possibly from Kashmir and a contemporary of Abhinavagupta.