ICRA on Monday said it expects steady recovery in telecom sector to sustain by way of ARPU expansion which is likely to boost revenues and margins for the industry. That said, debt continues to remain the achilles heel of the industry, it cautioned. ICRA expects total industry debt to remain elevated at Rs 5 lakh crore as on March 31, 2022. The next round of tariff hikes can provide a fillip to the industry Average Revenue Per User (ARPU). The expansion in profitability is expected to result in improvement in the debt coverage metrics of the industry, but it would continue to remain weak given the high debt levels, ICRA observed.