The Congress-led opposition on Friday walked out of the assembly, saying the 2017-2018 Budget presented by Finance Minister Thomas Issac had been leaked, due to which it had lost its sanctity.

As the Minister began his speech at 9 a.m., Leader of Opposition Ramesh Chennithala interrupted him at around 11.22 a.m, and told the assembly the Budget has been leaked and all what Issac was going to speak had already appeared on the social networking sites.

"Such a thing is a first of its kind and is of a very serious nature and he (Issac) is a very active participant on the social media and hence his office is fully responsible for this sham," said Chennithala, who was seen holding papers which he said was the copy of Kerala Budget on the social media.

However, Issac said he was not aware of it.

"I will certainly reply to this, after I complete my budget presentation and I will also inform the speaker," said Issac.

Unhappy with the turn of events, the Congress members shouted slogans and walked out of the house protesting that the sanctity of the budget has been lost.

This is the eight budget that the economist-turned-politician Issac presented on Friday.