Imprisonment is of four kinds.

1) Life Imprisonment
2) Simple Imprisonment
3) Rigorous Imprisonment, and
4) Imprisonment in default of payment of fine

AND YES, SOLITARY CONFINEMENT

Of either description means that trial court has the discretion (based on equity) to award any type, i.e. Simple or Rigorous, keeping in view gravity of offense, mitigating/extenuating circumstances, financial position of victim/accused, previous history, etc....

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Science without religion is lame, religion without science is blind.(Albert Einstein)