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**Pinḍaniyukti: An Observation**
Some scholars consider Niśītha niyukti as a supplement to Ācārāṅga niyukti, but Niśītha niyukti was composed independently after Ācārāṅga niyukti because Ācārya Bhadrabahu wrote a very concise niyukti of the four chūlās of Ācārāṅga, but Niśītha niyukti is written in a very detailed style. The niyuktikāra himself expresses his intention in the niyukti of the fourth chūlā of Ācārāṅga that after the fourth chūlā of Ācārāṅga, I will now speak about the fifth Niśītha chūlā. This statement of his automatically proves the separate existence of the text. Otherwise, he would have composed it along with the Ācārāṅga niyukti without mentioning it.
Looking at the difference in the style of composition of Niśītha niyukti, it can be said that Bhadrabahu II may have expanded it and established its independent importance. While Ācārya Bhadrabahu vows to write ten niyuktis, Niśītha is not mentioned. This is the starting point of contemplation. More research is needed in this area. Detailed speculation about this will be done in the sixth volume of niyukti literature.
Pancakalpana niyukti cannot be considered a supplement to Bṛhatkalpa either. It seems more likely that Ācārya Bhadrabahu has included both Pancakalpa and Bṛhatkalpa niyuktis in the mention of the word 'k appa' in 'k appao tah dasāṇam cha'.
Currently, the niyuktis written on Sūryaprajñapti and Ṛṣibhāṣita and Ārādhanā niyukti are unavailable. Manuscript copies of Saṃsakta niyukti are available, but it has not been published yet. There is a lot of difference in the verses and text in its copies. It mentions 84 āgamas, hence scholars consider it a later and inconsistent composition. A copy of Maheśa niyukti is also found in the Gadhaiya manuscript repository of Sardarshahar, but it is a matter of research as to when and by whom it was written on which text?
In addition to these niyuktis, mention of Govinda niyukti written by Govinda Ācārya is also found in many places. This will be discussed in detail in the introduction.
It cannot be said clearly about the definite number of other niyuktis besides the niyuktis mentioned by Ācārya Bhadrabahu. Niyukti-gāthās written on independent subjects have also been separated from the original niyukti and given the name of independent niyukti, such as - Āvśyaka niyukti is a vast 1. Āni 366; Āyārssa Bhagavato, Chauthachūlāi Es Nijjutti.
Panchamachūlniśīham, Tassa Ya Uvari Bhṇīhāmi. 2. Nibhā 5573, Bṛbhā 5473, T. P. 1452, Pankbhā 420.