Concerned over the figures on pending cases cited in the reports of Allahabad and Madhya Pradesh high courts, the top court said that "something needs to be done" to contain the alarming situation.
"We at present don't know what could be done but certainly we will try to do something. This is very concerning situation. Some of the matters are taken up for hearing in two to three decades," a bench of justices J Chelameswar and Sanjay Kishan Kaul said.
The total number of appeals where the sentence is life imprisonment are 15,424.
As many as 21,662 appeals where the sentence is up to three years for petty offences are pending since 1995 while appeals where sentence is more than than three years and up to five years are 8,442.
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Appeals of convicts, who have challenged their sentence of more than five years and less than life imprisonment are 15,040 which are pending since 1994.
The total number of other criminal appeals including state appeals are 10,903.
The high court said that last year till September 30, 2017, it had decided 4,118 such appeals and that now a dedicated bench sits on Saturday of every week to adjudicate the criminal appeals.
"This Saturday benches has enabled for speedy disposal of 944 such appeals pending since decades. There is shortage of judges which has to some extent resulted in backlog of cases," counsel appearing for the MP High Court said.
The court was hearing two petitions including one filed by an individual and an NGO 'Lawyers for Justice' and appointed senior advocate M N Rao as amicus curiae to assist in the matter.
The top court had earlier appointed senior advocates C U Singh and Shyam Diwan as amicus curiae to assist in the matter.
Advocate Navin Prakash appearing for the NGO said that this situation has resulted in convicts completing maximum sentence for the offence in jail with their appeal challenging their conviction still pending in high courts.
The bench then called for a report of superintendent of Unnao district jail in Uttar Pradesh with regard to Ramu, who is an accused in a murder case.
On September 4, last year, the top court had said that it is a "troubling situation" and sought a report from registrar general of Madhya High Court on the pendency of cases before it.
In March last year, it had sought report from the Allahabad High Court on the status of criminal appeals pending with it.
The NGO had challenged the order of Madhya Pradesh High Court holding that pendency of appeals cannot be the only ground for grant of bail.
It had said that by the time the appeals are taken up for hearing, the convicts would have served the maximum sentence for the offence and their petitions challenging conviction becomes infructous.
The apex court had earlier identified Allahabad High Court as its pilot project for the implementation of guidelines suggested by amicus curiae.
It had said that there are instances where the criminal appeals against conviction have been rendered infructuous as the convict during the pendency had served the terms of imprisonment imposed on them.