How much time does it take for IPO to open after filing DRHP?

It takes a minimum of 3 months for an IPO to open after filing the DRHP document with SEBI . In most cases, the time taken is in few months. SEBI takes around 4 to 6 weeks to approve a DRHP when there are no major changes required. After getting the SEBI approval, it takes around 4 to 6 weeks to bring the IPO to the market. After RHP is submitted, it takes one week to get SEBI approval. ROC Filing with exchanges before bringing the IPO takes around a week. Note: RHP approval is just an administrative exercise done by the legal team and the investment bankers based on the SEBI observations on the DRHP .