The MLA surrendered before the investigation officer at the police headquarters (PHQ).
"Kushwaha surrendered before the police in police headquarters, he is being interrogated, and if required he will be arrested", Director-General of Police Omendra Bhardwaj told reporters here.
Earlier in the afternoon, addressing hundereds of party workers outside MLA flats here before marching to PHQ, Kushwaha, however said he was "deliberately implicated" in the murder case of one Naresh, hailing from his Dholpur constituency in 2012, by the ruling BJP government despite his name not figuring in the FIR.
On July 5 the Rajasthan High Court had dismissd the anticipatory bail application of the Dholpur MLA.
A single bench of Justice K S Aluwali had rejected his bail plea on the ground that he was "charged with a henious crime" following which he could not be granted anticipatory bail.
The Dholpur MLA alleged his implication in the case, a conspiracy of the BJP, but the rival party has rejected the charge.
"This is BJP's conspiracy to stop rise of BSP MLAs which are three in numbers in the Rajasthan House", he alleged.
Reacting on Kushwaha's allegations on the ruling state government, Rajasthan BJP President Ashok Parnami said his party "never initiated" any action against anyone at its own, specially in crime matters.
BJP has "nothing to do with this case nor with the MLA Kushwaha's personal matters", Parnami said, claiming the action by police was taken based on facts and merits.
Madhya Pradesh police was looking for the MLA since January 21 for his alleged involvement in a chit fund fraud case.
