BaMoO4:Nd3+–Yb3+ phosphors have been synthesized by using conventional solid state reaction synthesis technique. Frequency up-conversion (UC) emission studies have been performed under 980nm excitation. The developed UC phosphors show multicolor upconverted emission bands in the 400-900nm wavelength range and assigned via the radiative transitions of Nd3+ ion. FIR technique based on frequency upconversion has been applied for the 4F7/2→4I9/2 and 4F5/2→4I9/2 transitions of Nd3+ ion in the NIR (750-804nm) region arising from the two thermally coupled energy states. The energy gap (ΔE) between the upper and lower excited levels (4F7/2 and 4F5/2) was found to be ~ 800cm-1. The maximum sensor sensitivity ~ 23.2×10-4K−1 at 303K (operating temperature range 303K-483K) under 980 NIR laser irradiation for BaMoO4:Nd3+-Yb3+ phosphors is reported. The prepared phosphors have proven their utility as a novel upconverting material for NIR to NIR contactless temperature reading out.