At least one person has been killed in the protests. The government has now deployed army forces to protect public buildings which have become targets for protestors.
Activists and opposition politicians appealed for fresh demonstrations in the capital, Tunis, on Friday and on Sunday, the seventh anniversary of the toppling of authoritarian president Zine El-Abidine Ben Ali, the first leader to fall in the 2011 "Arab Spring" protests that swept the region.
The North African country has been shaken by a wave of protests over poverty and unemployment during which hundreds were arrested before the unrest tapered off.
Interior ministry spokesperson Khlifa Chibani on Saturday said a total of 803 people suspected of taking part in acts of violence, theft and looting were arrested this week. The Interior Ministry said on Friday it had detained more than 700 people.
"It's a very advanced law project that has been submitted to parliament and will be discussed within a week", he said, adding that it could be financed but without specifying if the package had been budgeted.
The Popular Front said its leaders had been targeted in a political campaign that was "reproducing the methods of the oppressive Ben Ali regime".
The authorities on Friday said four people had been arrested after a petrol bomb attack on Wednesday damaged the entrances of two Talmudic schools in a Jewish district of Djerba.
The government has blamed the opposition and "troublemakers" for stoking unrest, a charge the opposition has denied. There was no immediate toll for the number of protesters injured in the unrest.
Tunisia appears to have little scope to back away austerity.
Tunisia, whose economy has been hit by a collapse in tourism revenues following a wave of jihadist attacks in 2015, has secured a £2bn International Monetary Fund loan in return for a reduction in its budget deficit and financial reforms.
The government defends the measures as necessary to limit a budget deficit that hit six percent of the country's gross domestic product (GDP).
Tunisia's has been in economic crisis since 2011, when the Arab Spring uprising unseated the government.
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But, later speaking to reporters in Mysuru , Siddaramaiah said, "I had said they are Hindutva terrorists". Parameshwara in Bengaluru on January 19. "They are raising irrelevant issues.