Prime Minister Narendra Modi leaves for Russia today for a two-day visit that is part of the annual summit talks with President Vladimir Putin. After their meeting in Moscow on Thursday, the two leaders are expected to sign key agreements on defence and nuclear energy. We expect to sign a number of agreements covering a very broad range of fields. Final touches are being given on some of them,” Foreign Secretary Subrahmanyam Jaishankar told reporters. Last week, the Defence Ministry had cleared the purchase of Russian S-400 Triumf air defence missile systems at an estimated cost of Rs. 40,000 crore. “Russia has been a very major military and strategic partner of India. There will be a lot of discussions on that,” he said. Expanding economic ties is also top of the agenda, with CEOs from both sides meeting.