"During the first LDF government under E M S Namboodribad, there was vigorous development in the fields of education and health, and very low infant mortality and general mortality rate.
"Kerala was the number one state in human development index, but whenever UDF comes to power, it systemically destroys everything," she told a meet-the-press programme here.
Referring to Prime Minister Narendra Modi's comments during an election rally on 'Gujarat model' of governance, she said the reply to it was 'Kerala model' governance by the Left.
Kerala had always been in the front in supply of PDS commodities. But the five years of UDF rule has destroyed the entire system, she alleged, adding price rise in the state "competes with" price rise of metro cities.
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"LDF will take Kerala for all-round development with people's support," Karat said.
To a question about Congress president Sonia Gandhi's emotional speech in the state yesterday, she said emotion cannot replace politics.
"You have to answer political questions. We want an impartial probe into the AugustaWestland helicopter scam. As far as personal attacks are concerned, we condemn. We are against it," the CPI-M leader said.
Karat also alleged UDF had "compromised" with RSS and hence violence by RSS activists against LDF workers was increasing in the state.
On the rape and brutal murder of a Dalit woman, she said, "It is the most shocking thing. What kind of administration is this? when her mothercomplained about the incident, police never took action. Instead they tried to cover it up.