To get a better understanding of what "Sadhna cut" refers to, I need more information:
* Where did you encounter this term? (e.g., a book, a conversation, a website)
* What is the context? (e.g., fashion, hairdressing, a spiritual practice)
* Can you provide any additional details? (e.g., what is the cut supposed to look like?)
With more information, I might be able to help you find a suitable English translation or explanation.