they can hire mumbai firms for that matter, Delhi offices mostly have disputes and restructing/banking practice.

Yeah, but startups frequently need funding advice and also ipo work apart from usual corporate decisions.

Adding ~

In GGN - McDermott Intl.,Indus Towers, Campus Footwear, Asahi Glass, Apollo Tyres,Canon India, Oyo etc.

In Delhi - Relaxo footwear, TCNS Clothing etc.

In Noida - Dixon Tech, Jubilant (Domino's), Tech Mahindra etc.

They are startups, not big enough to engage a whole tier 1 law firm for their work.PSUs don't have much transcational requirements,it's majorly routine secretarial filings and litigation and disputes which can take care of in Delhi .

Mumbai has all big investment banks, hedge funds , ARCs and stuff

BUMP (Really wanna know)! Associates who have switched please shed some light!

Despite the fact that many a PSUs, MNCs, unicorns, big lala companies being based out of Delhi, Gurgaon,Noida (Delhi-NCR) region why the major corp law work in majorly concentrated in mumbai.

Eg. - In Noida - Paytm, Indiamart, HCL, Samsung etc.

In GGN - Zomato,Vedanta,Indus towers, Bata,Indigo,Rites,Powergrid,Iffco,Iffco-Tokio, HSBC Canara etc.

In Delhi - PFC,SCI etc.