Sources in the know said the term of the three additional judges is coming to an end on November 21 and an extension of three months has been sought.
Additional judges are appointed for a period of two years following which most of them are elevated as permanent judges. But in certain cases they are given an extension ranging from three to six months.
This is the second set of recommendations made by the collegium to extend the terms of additional judges following its comeback last month after a gap of six months.
While the NJAC Act had scrapped the collegium system, the NJAC itself had failed to function as Chief Justice of India Justice H L Dattu had refused to be a part of it.
To overcome shortage of judges when the NJAC case was being heard by a Supreme Court bench, government had sought permission of the apex court to give extension to additional judges in various high courts whose tenure of two years was coming to an end as an interim measure.