Modi set aside protocol to go to the airport, travelling through the normal traffic without any route restrictions, official sources said.
"Delighted to welcome H.E. Sheikh Hasina, the Prime Minister of Bangladesh, on her State Visit to India," he tweeted later.
"PM Sheikh Hasina and I are determined to take the relationship between our nations to a new level," he added in another tweet.
Hasina arrived here on a four-day visit, which comes after a gap of seven years.
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