Bengaluru-based IndiQube has filed a DRHP with SEBI for an IPO valued at Rs 850 crore.The IPO comprises a fresh issue of shares worth Rs 750 crore and an offer for sale of Rs 100 crore by the co-founders.No external shareholders are participating in the offer for sale.IndiQube plans to use the net proceeds for establishing new centers, repayment of borrowings, and general corporate purposes.