"Prasad committed the sin of foisting 'jungle raj' in Bihar for 15 years. Kumar is guilty of preparing groundwork for imposition of 'jungle raj-2' by joining with the RJD," senior BJP leader Sushil Kumar Modi said in a statement.
The sins of Prasad and Kumar would not be washed away due to their association with 'jungle raj' in one form or the other, Modi said.
"The people did not give thumping majority to Nitish Kumar-led NDA to enable him to embrace the RJD supremo. If he had to do this, he should have recommended dissolution of the Assembly after quitting as chief minister and sought a fresh mandate," Modi said.
Referring to the epics, he said if some people called this alliance a meeting of lost brothers, it was not that of Rama and Bharata.
The BJP leader thanked Prime Minister Narendra Modi for forcing these two bitter rivals to join hands even though it might be half hearted and due to political compulsions.
He said the people would defeat those indulging in politics of theatrics to derail the vehicle of development during the bypoll on 10 Assembly seats to be held on August 21.