Reliance Infratel Ltd, a subsidiary of India's second largest telecom private operator Reliance Communications Ltd, will enter the capital market with an initial public offer (IPO).The company will offer over 89 million equity shares of Rs 5 each for cash at a premium to be decided through a 100 per cent book building process. The issue will constitute 10.05 per cent of the post-issue paid-up equity capital of the company.