API Holdings, the parent company of PharmEasy and Thyrocare, has repaid Rs 1,050 crore of outstanding debt, becoming debt-free after years of pressure on its balance sheet following the acquisition of the diagnostics chain.The company repaid the debt through proceeds from the sale of a portion of its stake in Thyrocare and internal accruals, it said in a statement on Monday.As part of the transaction, Docon Technologies, the promoter and holding