This comes after its largest customer in the country Vodafone Idea (Vi), in early 2023, said it won't be able to resume payments in full of its contractual obligations owed to ATC. ATC, which recently took a $411.6 million (about ₹3,374 crore) impairment charge due to cash-strapped Vi's partial payments, has further warned that it would be forced to take more similar charges amidst the Indian telco's financial woes.