Mumbai-based Runwal Developers has filed a Draft Red Herring Prospectus (DRHP) with SEBI for its IPO, aiming to raise Rs 2000 crore. The IPO structure includes a fresh issue of Rs 1,700 crore and an offer for sale (OFS) of Rs 300 crore by promoter Sandeep Subhash Runwal. The company plans to use the proceeds for debt repayment and prepayment.