On 30 July 2012 it was announced that Ralte had signed with Pune F.C. of the I-League on a two-year deal. He made his league debut for Pune on 5 January 2013 against United Sikkim when he came on as a 92nd-minute substitute for James Moga. Ralte scored his first ever professional goal on 24 May 2015 as he headed in Arata Izumi's deflected corner in the sixth minute, in what proved to be the only goal in a 1–0 victory over his former clubShillong Lajong.