I do not agree with what Capt. Sukhdev Singh is saying. Without understanding the deeper aspects of the game, he is merely scratching the surface. Rather uttering what some vested interests always want everyone to believe.
Author of this thread has a raised an important point and question i.e. why double standards? If we study the political history of this country and read the Constitution with an analytical mind, we will find probably vested interests have injected double standards at various places in Constitution to safeguard their interests.
It is said that after the British left, some people who were "transfered" power by British wanted to pursue the same policy of British i.e. to always suspect and subdue the people of this country with force but maintain an impression of democracy under Constitution. This needed a mercenary army with no consciense of its own that could be used against its own population. If we note this, it is not surprising why the freedom fighters of Indian National Army of Netaji were not absorbed in Indian Army after independence? Because they they had revolted because they had conscience and love for their country and its people. Having human consciense and love for the country and its people did not fit in the requirement of trigger happy mercenary army. They were not even recognised as freedom fighters for pension, till mid seventies when most of them had reached old age and were about to die.
How could this(having mercenary army that can impose martial law in a democracy!) be achieved and done? Read Articles 33 and 34 that injects "exceptions" to Part III of the Constitution below to understand. Everything is self explanatory:
33. Power of Parliament to modify the rights conferred by this Part in their application to Forces, etc.—Parliament may, by law, determine to what extent any of the rights conferred by this Part shall, in their application to,—
(a) the members of the Armed Forces; or
(b) the members of the Forces charged with the maintenance of public order; or
(c) persons employed in any bureau or other organisation established by the State for purposes of intelligence or counter intelligence; or
(d) persons employed in, or in connection with, the telecommunication systems set up for the purposes of any Force, bureau or organisation referred to in clauses (a) to (c),
be restricted or abrogated so as to ensure the proper discharge of their duties and the maintenance of discipline among them
34. Restriction on rights conferred by this Part while martial law is in force in any area.—Notwithstanding anything in the foregoing provisions of this Part, Parliament may by law indemnify any person in the service of the Union or of a State or any other person in respect of any act done by him in connection with the maintenance or restoration of order in any area within the territory of India where martial law was in force or validate any sentence passed, punishment inflicted, forfeiture ordered or other act done under martial law in such area.
I think it is now clear for everyone to understand that the Army Act flows from of Article 33 so that martial law described in Article 34 may be implemented without problems.