Indian Politics
The Citizen Act 1955, prescribes the way of losing citizenship acquired under the Act prior to it under the constitution viz. :

All of these
Deprivation.
Renunciation
Termination

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Indian Politics
The meaning of Residuary Powers in constitution of India is-

Power which can be exercised by Central and State Governments
Powers related to International issues
Powers which are not included in Union, State, and Concurrent List
Powers related to Internal Emergency

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