What happens if there is no Constitutional Amendment on Delimitation?

The story so far: The BJP is keen to kick off a fresh delimitation of Lok Sabha constituencies. It is trying to garner a two-thirds majority in Parliament to pass a Constitutional amendment for this purpose. In April 2026, it had moved the amendment but could not pass it. The Centre has not revealed its exact proposals. The proposals that the Centre placed before Parliament in the previous Session were the following:

1) Increase the size of the Lok Sabha up to a maximum of 850 seats; 2) distribute these seats among the States on the basis of the 2011 Census through a fresh, countrywide delimitation of constituencies; and 3) reserve one-third of the total seats for women.