With the Bharatiya Janata Party (BJP) rejecting the 'CM by rotation' deal too, the JMM seemed to have no option but to agree to back BJP.
The resolution came after JMM supremo Shibu Soren's son, Hemant Soren met BJP president Nitin Gadkari.
BJP parliamentary board is expected to meet on May 10 to decide on who would be the chief minister of Jharkhand.
The JMM-BJP coalition in the state fell apart after Shibu Soren voted for the Congress-led UPA government on a cut motion moved in the Parliament on Apr 27.
The BJP, which saw the act as betrayal, decided to withdraw its support to Soren government the very next day.
Ever since the BJP announced its decision, Shibu Soren's son Hemant has been on a tireless campaign to win back BJP.