Despite stocks market having mood swings of up and down, many companies have shown willingness to take risk and go for Initial Public Offers (IPO). 

In the past week six companies have firmed up IPOs of over Rs 20,000 crore and it is good news for investors. The IPO rush has come after the regulator Sebi has announced a slew of fresh reforms in the IPO space, also for halving the listing period to six days and making the application process for investors entirely cheque-free.

At least 20 companies have been given the go-ahead from market regulator Sebi to launch their respective IPOs while draft IPO papers of five firms are currently under process.

On Tuesday, low-cost carrier IndiGo, staffing firm Teamlease and e-retailer Infibeam have lined up public offers to raise an estimated over Rs 3,000 crore from investors. The draft papers for all three IPOs were being submitted to capital markets regulator Sebi on Tuesday.

Vver 30 companies have lined up plans to raise funds totaling over Rs 20,000 crore through public offers, which also include Cafe Coffee Day, Matrix Cellular and GVK Airport.

InterGlobe Enterprises, which runs the country's biggest airline by market share under the 'IndiGo' brand, is looking to raise Rs 2,000-2,500 crore through the IPO, sources said, while Teamlease is looking to raise Rs 450-500 crore and Infibeam about Rs 400 crore.

Last week three companies -- Cafe Coffee Day, Matrix Cellular and RBL Bank -- approached the regulator and they are now being followed by the likes of IndiGo, Infibeam and Teamlease.

GVK Group also plans to list its airports business arm, GVK Airport Developers, and may raise an estimated Rs 3,000 crore. It has developed Mumbai and Bangalore airports.

The privately-held IndiGo is one of the two domestic carriers making profit.

The low-cost model which employs narrow-body planes is one of the contributing factors for IndiGo's profitability.