Beleaguered wireless carrier Vodafone Idea will pay Rs 3,500 crore ($490 million) in telecom dues to the government by the end of this week, the company said on Monday. Vodafone Idea shares fell nearly 15 per cent on Tuesday, a day after hopes that the private sector telecom company could outlive the financial squeeze due to the outstanding payments helped its shares post their best intraday gain since January 21 before ending flat.