The mass spectra for the heavy-light (c{bar{q}}) ;q = u or d charmed mesons are computed based on a relativistic framework. The low-lying 1P states are found to be in an excellent agreement with the PDG reported values. Using the computed mass spectra and following effective Lagrangian approach based on heavy quark and chiral symmetry, the OZI allowed two body strong decays are computed. The computed decay rates, ratios and branching fractions allow us to identify the proper spin-parity assignments of the newly observed charm states. Accordingly, we could identify D_J(2560) as 2^1S_0, D_J^*(2680) as 2^3S_1, D_J(2740) as 1^3D_2, D_J^*(2760) as 1^3D_3, D^*_J(3000) as 2^3P_0, D_J(3000) as 2^1P_1 and D^*_2(3000) as 1^3F_2 open charm states. The effective coupling constants, g_T, tilde{g_H}, g_Y, tilde{g_S} and g_Z extracted from the present study are found to be in accordance with the reported values. These coupling constants would be useful in further investigations. We found D^{*+} pi ^- as a favorable channel for the experimental search of the missing 1^1F_3 state.