I was trying few धातु for practice.
The recent one was in भ्वादिगण: and the धातु is काक्षि. I was ok till काक्षि transforms as कान्क्ष् . The final form is काङ् क्ष्
I used the विकरण as शप् (अ) + ति and went through path 1 (पित् सार्वधातुकम्)
I am not able to figure out how कान्क्ष् especially the न् turns into ङ् and it becomes काङ् क्ष् / काङ् क्षति
Any help and insight is appreciated