She was reacting to the comments by Congress President Sonia Gandhi and Vice-President Rahul Gandhi on the Supreme Court's order for restoring the party's government in Arunachal Pradesh.
Targeting Prime Minister Narendra Modi, the Congress leaders said those who trampled upon constitutional propriety and democratic norms stand defeated.
Citing examples of Emergency and dismissal of several non-Congress state government's in the past, Sitharaman said: "lecture on democracy certainly not from Congress!... Sorry, Congress should just sit back and watch and introspect their earlier attempts to undermine democracy in various states".
"I would even go back to the Emergency days. When they were the authors of one of the worst crime against democracy. Even after that, did they learn their lessons? What did they do to N T Rama Rao's government, what did they do in Karnataka, misuse of positions. I can take any number of examples," she told PTI.
Earlier in the day, the Supreme Court ordered restoration of the Congress government in Arunachal Pradesh by quashing all the Governor's decisions that had precipitated its fall in January, holding them "violative" of the Constitution.