India has asked ZTE, one of several Chinese telecom firms seeking greater access to its market, to give 'clarifications' on security concerns about the company's equipment, the home ministry said Friday. A representative of the Shenzhen-based telecoms equipment giant met India's home secretary, G.K. Pillai, on Thursday and was asked to provide additional information on the equipment the company plans to sell. 'Clearance will depend on the clarifications that the ministry gets,' said Home Ministry spokesman Onkar Kedia. Indian telecom operators say the government is restricting imports from Chinese companies because of Indian intelligence agency fears that 'spyware' could be embedded in the equipment. Earlier this week, Pillai said India was particularly concerned about imports of telecom equipment for use in border areas. Chinese telecom companies have big hopes of doing business in the fast-growing Indian mobile market, which has nearly 600 million subscribers and has been adding more than 20 million users a month. Indian government officials have insisted there is no blanket ban on Chinese telecom equipment imports but have stressed that all suppliers, Chinese or otherwise, must meet security regulations. However, Chinese firm Huawei Technologies and ZTE say no new contracts have been approved since February 18, according to the Economic Times. The Economic Times also reported Friday that Huawei was willing to disclose the source code for its network systems to persuade India its equipment presented no risk. China's ambassador to India, Zhang Yan, who met the Indian home minister Thursday, said he hoped 'all relevant issues will be resolved in due course'. Pillai earlier in the week said: 'All border areas are sensitive and where such equipment comes to be positioned in some of these areas, we have certain concerns.' Chinese telecom equipment makers sold over three billion dollars worth of equipment in India last year, accounting for an estimated 15 percent of their total sales. 