Uttar Pradesh Chief Minister Mayawati has topped the list of chief ministers in the five election-bound states with maximum assets: worth Rs.87 crore, according to theNational Election Watch and the Association for Democratic Reforms.

"RTI responses from five states showed Mayawati has the highest assets at Rs.87 crore," said the study. "Chief Minister of Manipur Okram Ibobi Singh has the lowestassets worth -- just Rs.6 lakh."

Punjab's Parkash Singh Badal is the only chief minister who has got a criminal case, related to cheating and forgery, against him, said the study. He has assets worth Rs.9 crore.

In comparison, Uttarakhand Chief Minister B.C. Khanduri has assets worth Rs.1.69 crore and Goa counterpart Digambar Kamat has assets worth Rs.3.2 crore.

All five chief ministers are graduates. Khanduri is a post graduate.