Slamming the previous CPI(M) led Left Front government in Tripura for unleashing a reign of terror and violence during its rule, Saha said a late Marxist patriarch had coined the term scientific rigging and that was also put to use by his comrades in Tripura to win polls, "We had resolved our government will under no circumstances allow scientific rigging, no false voting and even the opposition had to thank the Election Commission of India for smooth conduct of polls," he said, adding the "unethical understanding" between CPI(M)-Congress in the assembly polls had robbed ruling BJP some of the seats.