Hello Yogendra, See for LLB 3yrs you have to clear DBRA University Entrance Test... The admission to the courses will be made on the basis of the merit of the entrance test and then after counseling, conducted by the University. And then based on all-over merit score candidate got selected for the admission... 

The online application form will be available on the website from the date of commencement of registration process. (Must be by the end of June 2018)

OTHER colleges for 3yrs LLB - DU, BHU, Panjab University, OP Jindal Global University, Sonipat, Kurukshetra University...

Hope i answered your query be free to contact further... All the best