All you need to know about Iran's parliamentary election

On the eve of the general election for Iran's 290-member parliament, the mood is heavy in the cold and rainy capital as the polls come amid escalating political tensions, economic struggles and concerns over public apathy.

The country's Supreme Leader Ayatollah Ali Khamenei and President Hassan Rouhani have called for a high voter turnout, and asked the public to come together as they did during recent crises including the United States' assassination of General Qassem Soleimani in January.