In previous two sections, we have presented the observational results obtained at 610 MHz & 235 MHz. Also the detailed observational results are summarized in Appendix A & B at both 610 MHz & 235 MHz.
In this section we would define a few `key' criteria for identifying the GMRT calibrators as from our observed list of 150 sources. Depending on sources meeting these criteria, we will list the sources as identified calibrators at 610 MHz & 235 MHz.