Mumbai, Aug. 1 -- In a consultation paper released on Thursday, the Securities and Exchanges Board of India (SEBI) has proposed changes to the structure of large initial public offerings (IPOs), including increasing the allocation limit for institutional buyers and reducing the share of retail investors.

The market regulator has sought comments on changes proposed on anchor investor norms, institutional lock-in periods, and transferring parts of retail quota to other segments.

In order to encourage longer holding periods, curb speculative exits and align with global best practices, SEBI has proposed to extend the lock-in periods for anchor investors beyond existing 30-day (50%) and 90-day (50%) requirements.

The regulator has also soug...