Brigadier General Mohsen Ghajarian of the elite Revolutionary Guards was killed in the northern province of Aleppo, according to the Fars news agency, which is close to the Guards.
He was advising pro-government forces in the fight against the Islamic State (IS) jihadist group, it reported, without saying when he died.
MizanOnline, a news agency linked to the judiciary, also reported his death.
Fars said six Iranian "volunteers" had also been killed in Aleppo province, where the Syrian army, backed by Russian air strikes, this week launched a major offensive against rebels.
The latest deaths bring to more than 100 the number of advisers and "volunteers" sent by Iran who have been killed in Syria since the beginning of October, according to an AFP tally.
The casualties include General Hossein Hamedani, a veteran of the Iran-Iraq war who died in October after having conducted 80 missions in Syria.
Assad's forces today entered the villages of Nubol and Zahraa north of Aleppo city, after breaking a rebel siege there, prompting what Syrian state news agency SANA called "mass celebrations" in the streets.
The conflict has killed more than 260,000 people and forced half the country's people from their homes since March 2011.
You’ve hit your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Access to Exclusive Premium Stories Online
Over 30 behind the paywall stories daily, handpicked by our editors for subscribers


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app