Opposition parties have renewed their offensive against the recently enacted pension reform legislation, demanding Thursday that the government correct the 40 typographical and other minor errors in the package when the extra Diet session convenes at month's end.

The Diet affairs chiefs of the Democratic Party of Japan, the Japanese Communist Party and the Social Democratic Party agreed at a meeting to demand that the government submit amendments to the extra Diet session.

They later asked House of Representatives Speaker Yohei Kono to meet this demand.