Postal privatization minister Heizo Takenaka and Finance Minister Sadakazu Tanigaki on Monday criticized the Democratic Party of Japan's recently aired ideas to change the postal savings system and fiscal reform, saying they would cost more than 100,000 jobs.

The main opposition party is likely to include the plans in its campaign platform for the upcoming general election.

Takenaka, who is also economic and fiscal policy minister, said the DPJ's plan to eventually lower the cap on postal savings for individual accounts to 5 million yen from the current 10 million yen would eliminate 30 percent to 35 percent of the jobs at Japan Post, which employs some 400,000 people.