India agreed to buy the S-400 system from Russia last year despite US warnings the purchase could trigger sanctions against it.
India said it needed the weapons to bolster its defences against China.
"As far as the S-400 deliveries are concerned, everything is
going according to plan. Our Indian colleagues have not asked to
speed anything up, it's all going fine," Putin told reporters at
a summit of BRICS countries in Brazil.
COMMENTS
Comments are moderated and generally will be posted if they are on-topic and not abusive.
For more information, please see our Comments FAQ