In a filing to the Hong Kong stock exchange, the company said its unit Hutchison Telecommunications International Ltd had late last year received a tax demand notice of Rs 7,900 crore and on August 9 received a penalty order of a similar amount. The CK Hutchison unit continues to dispute the validity of those taxes, it said. Hutchison Telecom, an indirect wholly owned subsidiary of CK Hutchison Holdings Ltd, had received a draft assessment order from the Indian Tax Authorities dated November 24, 2016 on "the alleged gains" made in the 2007 deal with Vodafone.