Prime Minister Benjamin Netanyahu touched down in this smog-filled city Sunday afternoon, warmly embracing his Indian counterpart, Narendra Modi, in a surprise ceremony at the airport, and celebrating a close personal bond that the two are hoping to parlay into further cooperation between their two countries.

Netanyahu’s five-day trip to India will see him attempt to expand business ties with the subcontinent, though it comes amid a cloud of uncertainty after Delhi cancelled a $500 million deal with Israeli arms maker Rafael late last year.

The Prime Minister’s Office said that Netanyahu had been expecting to be met by Indian Foreign Minister Sushma Swaraj and, arriving in Delhi, was apparently surprised to be greeted by Modi. The two leaders exchanged pleasantries and held their hands aloft for the press on the tarmac red carpet.

 I very much appreciate the gesture,” Netanyahu said through his office shortly after the two were whisked away from the brief arrival ceremony.

On his official Twitter account, Modi wrote in Hebrew, “Welcome to India, my friend PM @netanyahu. Your visit is historic and special. This visit will strengthen the close ties between our countries.”

Responding in Hebrew on his own Twitter account, Netanyahu expressed his appreciation for Modi’s personal welcome. “Thank you, my dear friend Modi, on the warm and personal welcome to India,” he wrote.

Accompanied by his wife, Sara, Netanyahu is leading a 130-strong trade delegation — the largest ever for an Israeli prime minister — to India meant to boost bilateral business ties, as well as diplomatic relations.

Over the course of the visit, Israel and India will sign a series of bilateral agreements.