@sajeesh Yes sir, and since water, having a higher density than petrol, separates and accumulates at the lowest point of the fuel tank due to gravity. Under low fuel conditions, when the fuel level approaches the reserve or near-empty state, the probability of water ingress into the fuel delivery system increases significantly. This occurs because the fuel pump intake is positioned near the bottom of the tank, from where it may draw the settled water along with the remaining fuel, potentially leading to engine misfiring, poor combustion, stalling or permanent damage to engine parts.
Royal Enfield has already started rolling out E20 complaint carburetors (for obviously older carburetor models) not sure how it works.
If anyone has more info or updates, please do share here.