Prime Minister Hun Sen left for India Friday en route to meet with officials over defense and economic cooperation, as well as petroleum agreements.
He is scheduled to stay for 10 days and will meet with Indian Prime Minister Manmohan Singh, President Pratibha Patil and Vice President Mohammad Hamid Ansari, the Foreign Ministry said in a statement.
The two countries are expected to sign seven agreements, including prisoner exchange, defense and cooperation in the petroleum sector, the statement said.
Human Rights Party Vice President Keo Remy said Friday many of the agreements were "useless," while foreign debt for Cambodia was "dramatically increasing."
"We are worried about our younger generation, who will be paying the debt," he said, adding, however, that the cooperation on petroleum could be "a benefit for Cambodia."
Sam Rainsy Party lawmaker Yim Sovann said agreements with idea could yield "advantages for both countries."
"But the thing is, how prepared we should be to receive the benefit of this cooperation," he said.