Of this the Congress and BJP have cornered around 80 per cent.
During 2012-13 and 2013-14, the Congress had a tax- exempted income to the tune of Rs 743.76 crore whereas BJP in the same time span did for Rs 338.95 crore.
Congress in 2012-13 had income worth Rs 318.08 crore whereas the amount rose to Rs 425.68 crore in 2013-24, BJP though had an income of Rs 17.42 crore in 2012-13 and it was Rs 321.53 crore for 2013-14.
Among other parties, CPI(M) registered an income of Rs 92.90 crore, CPI Rs 2.62 crore, JD(U) Rs 13 crore and RLD Rs 4.48 crore, it said.
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Lalu Prasad's RJD party in 2013-14 had a tax-exempted income of Rs 41,411.
The figure for the year 2012-13 for other parties were -- SP (Rs 30 crore), BSP (Rs 8.99 crore, CPI (Rs 1.55 crore), CPI(M) (Rs 40.73 crore), JD(U) (Rs 2.70 crore), RLD (Rs 97.90 lakh), JD(S) (Rs 46.99 lakh).