Armenia conducted trials of 155mm/39 MArG self-propelled howitzers developed by Kalyani Strategic Systems Limited (KSSL) before ordering the weapon. The Indian Defense Research Wing reported this.
"Kalyani Strategic Systems Limited officials stated that the Marg 155/39 self-propelled howitzer was developed in 8 months and tested by the Indian Army in Balasore and Pokran before it was offered to Armenia looking for a weapon system for military operations in the highlands. Where the conflict with Azerbaijan continues," writes IDRW.
The self-propelled MArG 155/ 39 howitzer was tested again in the presence of Armenian officials in about 40 days. The deal was sealed at a defense industry exhibition after it met all the marksmanship standards set by the Armenian military.
