The Department of Telecommunications (DoT) on Wednesday cancelled the 4G upgradation tender of PSUs BSNL and MTNL to avoid the Chinese telecom giants Huawei and ZTE make a bid for it. After the India-China tussle at Galwan valley, Indian officials had indicated that they would avoid using Chinese equipment in the the Indian telecom network. Now DoT will issue a new tender with clauses avoiding Chinese companies.