Russian President Vladimir Putin has submitted to Parliament a package of constitutional amendments widely seen as an attempt to secure his grip on power well after his current term ends in 2024.

Putin first presented the proposed changes in his state-of-the-nation address Wednesday, arguing they are intended to bolster the role of Parliament and strengthen democracy. Kremlin critics have argued that they are intended to allow his rule for life.

The Kremlin-controlled lower house, the State Duma, confirmed on Monday that it has received a draft bill on constitutional proposals from the Kremlin. The lawmakers will fast-track the document, putting it for discussion at Thursday's meeting.

Putin, 67, has been in power for more than 20 years, longer than any other Russian or Soviet leader since Josef Stalin, who led from 1924 until his death in 1953. Under the law now in force, Putin must step down as president when his current term ends.