Are various corporations formed under the Central Acts or State Acts or various government companies registered under the Companies Act, 1956/2013 or autonomous institutions set up by special Acts covered under the definition of ‘Government’?

No. The corporations formed under the Central
or a State Act or various companies registered under the
Companies Act, 1956/2013 or autonomous institutions set up
by the State Acts will not be covered under the definition of
‘Government’ and therefore, services provided by them will
be taxable unless exempted by a notification.