The measurement of B(E2) values, meanlives and energies of excited states in nuclei are most active areas of nuclear structure physics. In this work, the asymmetric rotor model of Davydov- Filippov (DF) has been employed to study the reduced transition probabilities, meanlives and energies of excited states in the rotational excited state band even-even nuclei of lanthanide and actinide series, which comprises of 57 nuclides. The E2-transitions ranging up to 12+ spin states have been studied, in detail, in the spectra of nuclei whose mass number ranges as 150