The CAG report on the state finances for the year ended March 2016 was tabled in the Gujarat Assembly yesterday.
The report said the amount remained unspent either due to "non-implementation" or "slow implementation of schemes/ programmes."
The CAG said that substantial surrenders, in which over 50 per cent provisions or more than Rs one crore remained unspent, were made under 95 different heads.
"Substantial surrenders were made due to either non-implementation or slow implementation of schemes/ programmes. Of the total provisions amounting to Rs 53,041.05 crore, Rs 15,114.51 crore (28.5 per cent) were surrendered, which included cent per cent surrender in 254 cases (Rs 5,107.86 crore)," it said.
Some of the reasons behind the surrender of amounts were non-finalisation of projects, non-release or less release of grants by the Centre, non-receipt of the central share, de-linking of the scheme by the Centre, among others, it said.