The CPI(M) also criticised the joint statement Modi and President Donald Trump issued, saying it "reconfirmed" India's status as a "subordinate" ally of the US.
The Left party rued India's major concerns like the status of H1B visas, racial attacks on Indians in the US, and that country's withdrawal from Paris climate change commitments, allegedly found no mention during Modi's meeting with Trump.
Instead, CPI(M) politburo alleged, Modi only committed that India will open its economy to the US.
"The joint statement issued with President Trump only reconfirms India's status as a subordinate ally of the USA," the politburo said in a statement.
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On Modi allegedly committing India will open its economy to the US, the politburo said that it is being done when India has sharply increased its purchase of American defence equipment, particularly USD 2 billion worth of aerial drones.
The Left party also alleged that the government has for the first time joined the US in condemning North Korea and also aligned India with the US on the South China Sea dispute involving China and its neighbours.