1983
 -Awarpur Cement Works Plant I
 
 1987
 Awarpur Cement Works Plant II
 
 1993
 -Jharsuguda grinding unit 
 
 1994
 -Hirmi Cement Works
 
 1996
 -Gujarat Cement Works Plant I
 
 1998
 -Andhra Pradesh Cement Works
 -Gujarat Cement Works Plant II
 
 1999
 -Narmada Cement Company Limited acquired
 
 -Ratnagiri Cement Works
 
 2000
 Bulk cement terminals at Mangalore, Navi Mumbai and Colombo
 
 2001
 -Grasim acquires 10 per cent stake in L&T. Subsequently increases
 stake to 15.3 per cent by October 2002
 -Durgapur grinding unit
 
 2002
 -Grasim increases its stake in L&T to 14.15 per cent
 -Arakkonam grinding unit
 
 -The Grasim Board approves an open offer for purchase of up to 20 per
 cent of the equity shares of Larsen & Toubro Ltd (L&T), in accordance
 with the provisions and guidelines issued by the Securities &
 Exchange Board of India (SEBI) Regulations, 1997.
 
 2003
 The board of Larsen & Toubro Ltd (L&T) decides to demerge its cement
 business into a separate cement company (CemCo). Grasim decides to
 acquire an 8.5 per cent equity stake from L&T and then make an open
 offer for 30 per cent of the equity of CemCo, to acquire management
 control of the company
 
 2004
 Completion of the implementation process to demerge the cement
 business of L&T and completion of open offer by Grasim, with the
 latter acquiring controlling stake in the newly formed company
 UltraTech
 
 2006
 -Narmada Cement Company Limited amalgamated with UltraTech pursuant
 to a Scheme of Amalgamation being approved by the Board for
 Industrial & Financial Reconstruction (BIFR) in terms of the
 provision of Sick Industrial Companies Act (Special Provisions) 
 - Formerly known as Ultratech Cemco Limited. The Group's  principal
 activities are to manufacture and market clinker and cement in India
 
 - Ultratech Cement Ltd has inducted Mr. Saurabh Misra into the Board
 as an Additional Director and appointed Managing Director of the
 Company.
 
 - Ultratech Cement receives order from BIFR.
 
 - Ultratech Cement Ltd has appointed Mr Girish M Dave as a Director
 on the Board of the Company.
 
 2009
 
 -UltraTech to absorb Samruddhi to form India's biggest cement firm
 
 -Ultratech to be the lead sponsors of Rajasthan Royals
 
 -UltraTech to consider Grasim merger proposal
 
 2010
 
 - Ultratech Cement Ltd has appointed Mr. O P Puranmalka as Additional
 Director with immediate effect.
 
 2011
 
 -UltraTech Cement Ltd has recommended a final dividend of Rs. 6/-
 
 2012
 
 -UltraTech Cement Ltd has acquired 100 per cent equity shares of
 Gotan Limestone Khanij Udyog Pvt Ltd (GKUPL), Rajasthan.