The PCR reaction mixture (20 μl) had 15–30 ng of each template DNA, 0.01 μM of each primers, 200 μM of each dNTP, 2 μl of 5× Taq buffer and 3U of Taq DNA polymerase. Amplification was carried out with a preliminary denaturation step at 94 °C for 5 min followed by 35 cycles of denaturation (94 °C for 1 min), primer annealing (55 °C for 1 min) and extension (72 °C for 2 min). After 35 cycles of PCR amplification, the PCR products were screened by electrophoresis and the eluted products were subjected to Sanger's dideoxy sequencing for species identification. The similarity search for sequences was carried out using the BLAST (N) option and sequences were deposited in NCBI Genbank