Law and Justice Minister H R Bhardwaj provided the information in a written reply in Rajya Sabha on Monday quoting the figures as on March 31, 2007, gathered by a department-related Parliamentary Standing Committee.
Further, the CBI has reported that it is investigating around 65 such cases.
The Parliamentary Standing Committee on Personnel, Public Grievances, Law and Justice while studying the issue of 'Electoral Reforms' was seized of the matter pertaining to chargesheet files against sitting MPs/MLAs in different competent courts of law.
All state governments and UT Administrations were asked to provide the requisite information to the committee.
Some states/UTs have furnished the information, as per which around 1,300 cases are pending against sitting MPs/MLAs in various courts, the Minister said.