In recent years, NIR has been coupled with the mathematical operations known as Fourier transformations (FT) to get FT-NIRS. Fourier transformations is a powerful method to enhance the signal and noise ratio. With FT-NIR spectrometer, data are rapidly collected in time domain and then converted by FT to conventional frequency domain. As the time required for a single scan is reduced, the time required for ensemble averaging is also reduced. FT-NIR spectrometers are an advancement over the conventional instruments having more energy throughput, excellent wave number reproducibility, extensive data manipulative capabilities, accuracy and advance chemometric software to handle calibration