The Tdrs fleet is a critical connection for delivering science
and human spaceflight data to researchers on Earth.
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2
Real estate business' means buying and selling of real estate or
trading in Transferable Development Rights(Tdrs) but does not include development of townships,
construction of residential/commercial premises, roads or bridges;
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3
The system will specially help those passengers who are forced to
submit claims through Ticket Deposit Receipts(Tdrs) at ticket counters as they are unable
to know their tickets' refund status at any other point.