Is there any? For example I have heard that AZB and Partners are a bit biased towards NLSIU

They hire in bulk from other NLUs like NALSAR and NUJS too.

Khaitan is definitely biased towads tier-3. Their quality is going down and down for this

Khaitan is giving opportunities to Non nlu as well that does not make them biased or no less of an tier 1 firm in India

Non-nlu eh? Makes sense more now