A master's degree from IGNOU is eligible for a CSIR -NET qualification? If someone completes his master degree in mathematics from Indira Gandhi National Open University (IGNOU). Can he be eligible for a CSIR -NET application? 

CSIR -NET is a necessary qualification for lectureship or junior research fellowship in india given by the Council of Scientific &amp; Industrial Research (CSIR).
The requirements for the NET application can be found in the CSIR homepage. Take a look into the main notification documentation.