The study, conducted in 31 constituencies of Mumbai and Thane region, showed that 14 MNS candidates had criminal cases registered against them.
On the other hand, the Shiv Sena fielded 13 such candidates.
"Out of 354 candidates in fray in these 31 constituencies, 82 have criminal cases registered against them. One of the candidates Arun Gawli is convicted in seven cases," said Sharad Kumar, trustee and election coordinator of AGNI.
Meanwhile, the study also showed Congress consisting of the maximum number of rich candidates.
"Congress has 16 candidates with assets of over a crore rupees. MNS is not behind, with 12 candidates having assets in crores," Kumar said.