Dilip Bankar and Manikrao Kokate, who represent Nashik district, tweeted separately to say they were kept in dark about Ajit's swearing-in ceremony
He added that the "khichdi" (hotchpotch) being cooked (by the Shiv Sena, NCP and Congress) was against the people's mandate.
The development, Athawale said, is a "big setback and a lesson" for the Shiv Sena which was unwilling to form government with the BJP.
BJP's Devendra Fadnavis on Saturday took oath as Maharashtra chief minister, while Ajit Pawar as his deputy.
The oath was administered by Maharashtra Governor Bhagat Singh Koshiyari
The Sena, the second largest party in the 288-member House with 56 MLAs after the BJP's 105 members, had time till 7.30 pm to stake claim
Holding a press conference after meeting Sharad Pawar earlier in the day, an emotional Ajit also denied that there was any rift within the Pawar family
"We have registered an offence at MRA Marg police station based on the complaint of Economic Offences Wing," an official said
A bench of Justices S C Dharmadhikari and S K Shinde directed the EOW to file the FIR within the next five days
The PIL alleged that tender conditions were tweaked to favour the construction firm controlled by Bajoria
Pawar recalled how Vilasrao Deshmukh govt had to ferry its MLAs to Bangalore to avoid horse-trading before majority vote