New York, Sep 26 (IANS): A day after he pitched strongly for UN Security Council reforms, Prime Minister Narendra Modi will on Saturday attend a summit of G-4 countries - India, Brazil, Germany and Japan - that have taken the lead in pressing for the overhaul.

This is the first such summit after 2004 and comes after the UN General Assembly has resolved on a text-based negotiation on the Security Council's reform.

Modi will meet with German Chancellor Angela Merkel, Japanese Prime Minister Shinzo Abe and Brazilian President Dilma Rousseff at the summit.

"We must reform the United Nations including its Security Council so that it carries greater credibility and legitimacy and will be more representative and effective in achieving our goals," Modi said at the UN Sustainable Development Summit on Friday.

Modi will later travel to San Jose, California.

He will visit Tesla Motors, in Palo Alto in California, to see the path-breaking inventions on renewable energy. He will meet Apple CEO Tim Cook and later other tech company chiefs like Microsoft's Satya Nadella, Google's Sundar Pichai, Adobe's Shantanu Narayen, Qualcomm's Paul Jacobs, Cisco's John Chambers and TiE (The Indus Entrepreneurs) president Venky Shukla.

Modi will also deliver an address at the Digital India and Digital Technology Dinner.