Pharmaceutical ingredients maker SPC Lifesciences Ltd has filed preliminary papers with the capital market regulator Sebi to raise funds through an initial public offering. The Initial Public Offering (IPO) consists of fresh issuance of equity shares worth Rs 300 crore and an Offer For Sale (OFS) of 89.39 lakh equity shares by promoter -- Snehal Rajivbhai Patel -- according to the draft red herring prospectus.