Zaria Plan released after the attack in Russian capital Moscow, know what it is?

At least 140 people have died and 145 have been seriously injured after 5 gunmen opened fire at a concert hall near the Russian capital Moscow. ISIS claimed responsibility for the attack shortly after the attack. On the other hand, Ukraine has been claimed to be involved in the Russian attack. Ukraine issued a statement on these allegations saying that it is completely baseless.
Zaria plan released in Moscow
Ukraine also said that making such allegations is a way to defame Ukraine in the international community. America has also given a clean chit to Ukraine, on which Russia has faltered. According to the information, the US Embassy in Russia had expressed fear of a major attack, but Russian President Vladimir Putin had condemned it. This terrorist attack took place 5 days after Russian President Putin became the President for the 5th time. Putin became the President of Russia for the 5th time on March 18. Meanwhile, Russia has released the Zaria Plan in Moscow.
What is Jariya Plan?
Jariya means state of war. Jariya Plan is implemented only in extreme emergency situations. Russia’s Home Ministry has asked all police and security forces to report for duty within an hour under the Zaria Plan. Along with this, security personnel have been asked to wear bulletproof vests and carry guns and weapons. Russia has tightened security at airports, transportation hubs and across the capital. All large-scale public events have also been canceled across the country.