MUMBAI, Dec 6 (Reuters Breakingviews) - It’s rare for a tycoon to willingly give up an inch of their company. Boss Mukesh Ambani might do precisely that to fund a push by his $220 billion Reliance Industries (RELI.NS) conglomerate into consumer lending. It underscores his ambition in India’s booming financial services. Given its reputation for disruption, Reliance’s plan is forcing rivals to sit up and take notice. The company is spinning off and listing its little-noticed non-bank financial company. Jio Financial Services will count as India’s fifth largest lender by net worth behind top banks including HDFC Bank (HDBK.NS) and...