Government proposed to set up a commission to carry out delimitation of parliamentary and assembly constituencies throughout the country without altering the total number of seats. A bill to this effect, introduced in Lok Sabha on Friday by law minister Arun Jaitley, said the delimitation commission has been given two years to complete its work.

“The proposed delimitation will apply to every general election to the house of the people or to a state legislative assembly held after the final orders of the commission are published and to every bye-election arising from such general election,” the delimitation bill said.

The present delimitaiton of parliamentary and assembly constituencies is based on the population figures in the 1971 census and since then continuous migration of people especially from rural to urban areas has resulted in strikingly differing sizes of constituencies even within the same state.
Besides correcting the distortion in sizes of constituencies, the commission would also re-fix the number of scheduled caste and scheduled tribes seats on the basis of the 1991 census, without affecting the total number of seats based on the 1971 census. Bureau Report