Anthem Biosciences, Aye Finance, BlueStone Jewellery, and GK Energy have received SEBI approval for IPO.Anthem Biosciences plans to raise funds through an offer for sale (OFS) worth Rs 3,395 crore.Aye Finance is planning an IPO with a fresh issue of shares worth Rs 885 crore and an OFS of Rs 565 crore.BlueStone Jewellery and Lifestyle is also planning an IPO with a fresh issue of shares worth Rs 1,000 crore and an OFS of 2.4 crore equity shares.