Super Eagles technical adviser, Gernot Rohr, on Monday released a provisional list of thirty players for the 2018 World Cup in Russian Federation.
Apart from the usual suspects, Junior Lokosa, Kano Pillars and Nigeria Professional Football League (NPFL) highest goal scorer, was included in the list.
26-year-old Nwankwo gets his maiden worldwide call-up thanks to his fine form in the Italian topflight where he has scored six goals in his last seven outings.
Two members of Nigeria's African Nations Championship side also made it.
Rohr selected goalkeepers Ikechukwu Ezenwa, Francis Uzoho of Deportivo La Coruna, Daniel Akpeyi and Dele Ajiboye, meaning no recall for veteran Vincent Enyeama.
Samsung Galaxy J4, Galaxy J6 specs detailed
It is expected to sport a 5.5-inches IPS LCD display and powered by a 1.5GHz Exynos 7885 octa-core chipset. However, Galaxy J series phones differ in terms of screen-size and internal hardware.
The team's training camp will run from 22 May until 11 June.
Rohr is expected to make his final cuts to the squad after the England match, needing to drop seven players before travelling to Russian Federation with his final 23.
Nigeria is in Group D at the World Cup and faces Croatia, Iceland and then Argentina.
Super Eagles are heading to their sixth World Cup, having taken part in the 1994, 1998, 2002, 2010 and 2014 editions - with a place in the Round of 16 their best performance ever.