The Chief Minister will be handing over his resignation to state Governor Justice (Retd) P Sathasivam tomorrow at 10:30 AM, Chandy's press secretary P T Chacko said.
LDF had put up an impressive performance in the assembly polls winning 91 seats, while UDF could manage only 46.
Chandy, the only Congress Chief Minister to complete his full five year term came to power with a wafer thin majority of 72 members in a 140-member Assembly in 2011.