Dear Suresh,
I'm pretty sure that this is Aeonium arboreum 'Atropurpureum', a
popular container plant derived from a Canary Island species.
Kind regards,
Alastair
Dr Alastair Culham
Centre for Plant Diversity and Systematics
Harborne Building, School of Biological Sciences
University of Reading, Whiteknights, Reading, RG6 6AS
U.K.
http://www.reading.ac.uk/biologicalsciences/pg-taught/biosci-pgtmscplantdiversity.aspx
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