best tour operators for Malaysia,Thailand,Singapore for travel from Delhi in group,all inclusive pack.?

group tour operators with all inclusive pack for 11/12 days.what to see in selecting a operator.when to pay him.

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ITB Asia 2008

Singapore

$24.99

Singapore

Singapore-Funvee-Heritage-Trail

$8.59

Travel by open top bus to discover the rich cultural mix that makes up multi ethnic Singapore

Singapore Travel Pack

$11.21

This [...]