Civil society group ADR have analysed the self-sworn affidavits of 541 out of 543 winners in the 2014 Lok Sabha elections filed before the Election Commission.
They found that 34% of the winning candidates are faced with criminal charges. It was 30% in 2009 and 24% in 2004.
"Out of the 541 winners analysed, 186 (34%) have declared criminal cases against themselves," ADR said in its detailed analysis
BJP is leading the chart with as many as 98 winning candidates (35%) out of total 282, are facing criminal charges.
While, 8 out of total 44 candidates of Congress are facing criminal charges.
In AIADMK 6 out of 37 winners have been booked by police in some case or other.
The percentage of candidates facing criminal charges is highest in Shiv Sena as its 15 candidates out of the total 18 are booked in some case or other.
Trinamool Congress' 7 out of 34 winners are facing criminal charges.
ADR in its analysis also found that on an average four out of five candidates in the 2014 Lok Sabha polls have declared assets worth over Rs 1 crore.
"Out of the 541 winners analysed, 442 (82%) are crorepatis," the analysis pointed.
In this category also BJP is leading as 237 (84%) out of its 282 winners are crorepatis.
In Congress, 35 (80%) out of 44 winners are crorepatis.
ADR also underlined that chances of candidates with criminal charges were almost double as compared to clean candidates.
"The chances of winning of a candidate with criminal cases in the Lok Sabha 2014 elections are 13% while for a candidate with a clean record it is 5%," ADR said in its analysis.
The ADR was established in 1999 by a group of professors from the Indian Institute of Management (IIM) Ahmedabad.