Tokyo, Feb. 8 -- Japan's ruling Liberal Democratic Party (LDP) under Prime Minister Sanae Takaichi is certain to secure a two-thirds majority in the lower house in the Japanese Parliament, the House of Representatives, following Sunday's snap election, delivering a significant boost to her policy agenda, Kyodo News reported, citing early projections.

The LDP is on track to cross the 310-seat threshold in the 465-member Lower House, a majority that would allow it to advance constitutional revision and pass legislation even if blocked by the House of Councillors, where the ruling coalition remains in the minority, as reported by Kyodo News.

The LDP's projected gains--up from 198 seats before the election--are widely attributed to Takaichi...