"Imposing retrospective taxes is not only punitive but regressive as well and amounts to extortion which the Akalis are now resorting to," he told a delegation of real estate dealers and marriage hall owners here.
The former chief minister assured them of introducing a comprehensive real estate development policy to safeguard the interests of everyone concerned, including investors and dealers, if the Congress assumes power in the 2017 Assembly election.
He claimed that despite a massive increase in stamp duty effected by the Akalis, the income generated was far less compared to the figures during his tenure as chief minister.
Amarinder said during his tenure stamp duty on real estate was six per cent whereas it has now been raised to 10 per cent by the Akalis but revenue collection from it has gone down by more than half.
The state Congress chief accused the SAD-BJP government in Punjab of "harassing" marriage hall owners by imposing retrospective taxes on them.