Hey Panidhar.

The admission in National Law University, Delhi for the 40 seats of the course of LLM is done through their self conducted entrance test- AILET every year. The application process for AILET starts around the month od January.

You can use the link belowfor more details

https://nludelhi.ac.in/adm-llm-adp.aspx

https://law.careers360.com/exams/ailet-pg