Dear Candidate ,
No , you cannot join OUTR without either OJEE or JEE Main - direct admission is not possible .
If you do have a valid JEE Main score , you must register in the OJEE portal and choose OUTR during counselling .
If you have missed OJEE Phase 1 , check the eligibility for Special OJEE Phase 2 .
NOTE - Diploma students can  directly enter into 2nd year via OJEE lateral entry .