Khatta simply means account. However when it is referring to some terms like A Khatta, B Khatta, E khatta etc, this is relates to an account related to propery assessmentand taxpaymentthereon. This is prevalent in Karnataka State .
This Khatta is a document that specifies the person liable to pay the property tax. Hence the document contains all relevant details like the name of the property owner, property number, the extent of the property, location, built-up area, tax assessment, etc and any more information needed to enable property tax assessment.and payment.
A person who owns a property in Brihat Bengaluru Mahaanagara Paalika (BBMP) is to obtain such a document.
It should be understood that his khatta is not a title deed, but a document, but a record document maintained by BBMP for purposes of tax payment /tax paid history on that particular property.This Khatta does not by itself give ownership, but just specifies or identifies the person who is liable to pay the property tax .
This document (Khatta) is categorised int two. - A Khatta and B Khatta.
A Khatta is given for proprty that legally conforms to all the government regulations and taxation.
B Khatta is regarding property violating norms or not fully conforming norms or having some pending taxes and payments. B Khatta can be upgrade to A Khtta by paying the relevant charges and submitting needed documents.
E Khatta is electronic version filled online and paid online
It is the responsibility and duty of a property owner in BBMP area for Khatta registration. Khata is needed o various transactions on the property. For registration of Khatta there are certain documents to be submitted to BBMP.
In the given case as you have misplaced the E KKhatta given by the buildr, you need not worry. Just read the title deed document and there may be some narration or copy of the previous tax payment. With that you can approach the concerned Municipality or Panchayat and get details. I the property is already transferred in your name in their records matter is easy. Otherwise you have to apply for registration in your name by submitting the sale deed, last tax paid receipt/certificate, occupation certificate given by municipality/panchayat etc(in short all papers which prove your title to the property).
For more specific details you may visit bbmp.gov.in/.../khatha services and also 'Bhoomi' in the E services section of Karnatak.gov.in website