(Reuters) - Fosun International said on Friday steel manufacturer Jiangsu Shagang Group has filed a lawsuit against the company alleging the failure of one of Fosun's unit to perform an obligation under a recent deal.    Last month, Fosun said it would sell its 60% stake in Nanjing Nangang Iron & Steel United Co Ltd to Jiangsu Shagang for 13.58 billion yuan ($1.98 billion).

The Chinese conglomerate said the litigation will not affect the group's operations and it will take appropriate action to defend the claims.

In recent times, Fosun and its units have cut stakes in firms such as New China Life Insurance, Zhaojin Mining Industry Co and Shanghai Yuyuan Tourist Mart Group. Earlier this year, the company sold its stake in four separate firms for a combined 6.7 billion yuan.

(Reporting by Navya Mittal in Bengaluru; Editing by Shailesh Kuber)