1979 - The Company issued and allotted on 7th April, 71,94,951 No. of equity shares of Rs 10 each and 32,07,029 - 7 1/2% preference shares of Rs 10 each credited as fully paid-up to the persons who, at the close of business on 1st April, were the holders respectively of the CESC Ordinary Stock: For every 5 nominal of 6% cumulative preference stock of CESC and for every 5 nominal of ordinary stock of CESC, eight equity shares of Rs 10 each of the Company.

1981 - Issued 3,00,000 No. of equity shares to ICICI. 6,50,000 No. of Equity shares to IDBI and 3,00,000 No. of equity shares to LIC all at par in part conversion of loans.

1985 - The Company issued 8,50,000 - 15% secured, redeemable, non-convertible debentures of Rs 100 each on rights basis in February to meet its working capital requirements.

1986 - The Company secured during the year a contract for erection of their Lalmatia (Bihar) 220/132 KV substation. Another contract was secured from BHEL for erection of their 400 KV substation at Kolaghat (West Bengal). The company was also entrusted with the preparation of feasibility studies for captive power generation projects.

1987 - The name of the Company was changed from The Calcutta Electric Supply Corporation Ltd., to CESC Ltd., with effect from 1st of January.

1988 - A Memorandum of Understanding was signed between the consultancy & Contracts division and the company by Neyveli Lignite Corporation for cabling work. A MOU was signed between the Consultancy & Contracts Division and MECON, a public sector consultancy firm to jointly undertake consultancy and construction contracts in power and engineering field both in and outside India.

1991 - All statutory clearances were received for the 500 MW power station at Budge Budge.

- The Company proposed to set up a 3 x 250 MW coalfired thermal power station at Balagarh.

- The Company proposed to issue 20% secured redeemable non-convertible debentures aggregating Rs 20 crores on private placement basis to financial institutions.

- During March, the Company offered 33,89,006 No. of equity shares of Rs 10 at a premium of Rs 15 per share to the equity shareholders on Rights basis in the proportion of 1:5 and 1,69,451 No. of equity shares of Rs 10 each at a premium of Rs 15 per share to the permanent employees/workers of the Company on an equitable basis.

- The company issued 8,71,500-12.5% secured redeemable partly convertible debentures of Rs 600 each as follows: (i) 4,65,000 debentures were reserved for a preferential allotment to the equity shareholders; (ii) 43,575 debentures were reserved for preferential allotment to the permanent employees/workers of the Company on an equitable basis and (iii) 3,62,925 debentures were offered to the Indian Public.

- Part `A' of Rs 250 of each debentures was to be converted into 10 equity shares of Rs 10 each at a premium of Rs 15 per share at the end of six months from the date of allotment.

- Part `B' of Rs 350 of each debenture was to be redeemed at par in 5 equal instalments of Rs 70/- each at the end of 7th to 11th years from the date of allotment.

- The Company allotted (including permitted retention) 9,17,598 debentures and 39,94,596 No. of equity shares effective 11th June, 1991 respectively.

1992 - The Company proposed to undertake the project for a high installed capacity of 1,500 MW to be completed in three states - Stage-I of the project comprising 2 x 250 MW units having an installed capacity of 500 MW which will be followed by one 500 MW unit in the second stage and another 500 MW unit in the third stage.

- The Company finalised to issue 1,55,43,240-16% secured redeemable non-convertible debentures of Rs 100 each for cash at par in order to raise resources for meeting a part of the requirements of the Budge Budge power station project and also for meeting the Company's working capital needs. 1993 - Approvals/clearances were received. The Company entered into an agreement with Rolls Royce Power generation system for turnkey execution of the project.

1994 - The Company proposed to set up a 1500 MW thermal generating station to be completed in 3 stages.

- During April, the Company issued 83,66,140 Global Depository receipts representing 83,66,140 shares together 33,46,456 warrants to subscribe for GDRs in units of 5 GDRs and 2 warrants. The issue price was US $ 53.34 per unit.

1995 - A new Company Integrated Coal Mining Pvt. Ltd. was promoted by the Company to undertake the work of particularly power companies to be directly involved in mining.

- The Company issued 3,00,000 - 14% secured redeemable non-convertible debentures of Rs 100 each on private placement basis to financial institutions. These debentures are redeemable in five equal annual instalments at a premium of 5% from 9th April.

- 50,00,000 No. of equity shares allotted on conversion of warrants attached to 16% NCD.

1996 - The Company has promoted a new company Balagarh Power Company Ltd., for setting up a 1500 MW thermal power station.

- CESCON, Ltd. is a wholly owned subsidiary of the Company. It carries on consultancy contracts and other allied business independently.

- 89,31,620 No. of equity shares of Rs 10 each allotted at a price of Rs 50 per share on conversion of warrants. 30,14,465 No. of equity shares of Rs 10 each Rs 1 paid up allotted at a price of Rs 50 per share on conversion of warrants. 34,97,000 No. of equity shares of Rs 10 each. Rs 1 paid up allotted at Rs 80 per share on conversion of warrants.

1997 - 120,00,000 pref. shares redeemed. 8,103 No. of equity shares allotted on conversion of warrants attached to 16% NCD.

- CESC is also setting up a 1,500-mw thermal power station in two or three stages at Balagarh.

- The largest disadvantage for the company is that it is situated in a state which is the strong hold of the Leftists.

1998 - The long term rating of Rs.1550 million Non Convertible Debenture Programme of CESC Ltd. has been downgraded from LAA to LA, indicating adequate safety, by Investment Information and Credit Rating Agency (ICRA).

- The Calcutta Electric Supply Corporation, renamed CESC Ltd. in 1987, has been lighting up Calcutta for over 100 years.

- The company are the 2 per cent effective tariff increase after several months, which came in November 1996.

- 20,00,000-14.5% pref. shares redeemed. 101,88,665 equity shares of Rs. 10 each Rs. 5 per share paid up allotted on 15th Feb. 1999 on conversion of equity warrants `B' attached to 15% NCD.

1999 - CESC Ltd. has demanded another hike in the fuel surcharge (FSC) rates for a three year span form 1996-97 to 1998-99.

- CESC's existing licensing agreement will be made to include borderline areas of the city currently within the jurisdiction of WBSEB.

- The company has grown into a 650 MW capacity generating and distributing network.

- The company has initiated a series of interactive programmes on "Building Excellent Service Provider" for its employees.

2000 - ICRA has downgraded the rating of the Rs 155.3 crore NCD issue of the company to LBBB+.

2001 - The Titagarh Thermal Power Station of CESC Ltd. has been awarded the ISO 9002 certification. 2002

-CESC Board approves proposal for amalgamation of subsidiary.

-Appoints Mr Tarun Kumar Ray as the Nominee director of IFCI on the Board of the company

-Court orders the company to pay Rs. 3 cr to Damodar Valley Corporation.

-Government nominates Mr Birenjit Kumar Paul on the Board of the company.

2003

-Chemithon Engineers Ltd along with Heavy Water Board of the Government starts work on development of a process to bring down emission levels at the company.

-Unveils multi-pronged scheme to curb pollution at its thermal power facilities.

-Board approves to allot shares to Management Group & Associates.

-Introduces Voluntary Separation Scheme for all permanent employees of the company who have completed 10 years of service and attained 40 years of age.

-2300 employees apply for CESC's retirement scheme

2004

--Hindustan Lever Ltd tied up with the private sector power utility, CESC Ltd, for sampling of Pepsodent toothpaste. `Touchbase with Kolkata' project said that with its April bills CESC would be sending out 14.1 lakh covers carrying the Pepsodent label and a small 15 gm tube of toothpaste with a new flavour.

-PTC forges alliance with CESC

-CESC ties up with HLL

2005

-CESC ties up with Power Finance Corporation (PFC) to repay debt

-CESC executes MoU with Govt of Jharkhand

2008

-CESC Ltd has forayed into a memorandum of understanding with the Government of Bihar to establish a 2,000-MW power plant in the State's Bhagalpur district at an investment of Rs 10,000 crore.

2009

- In recognition of his outstanding performance and effective leadership role, Mr. Subrata Talukdar was awarded "Outstanding Achiever Award".

-CESC bags 140 mw hydro power project in Himachal

2010

-CESC now owns 100 percent of Dhariwal Infrastructure and the company is expected seek approval from the Registrar of Companies (RoC) to rename Dhariwal Infrastructure.

2011

-Renowned names from the world of business and industry came together at the second edition of AIMA Managing India Award.

-Bantal Singapore Pte Limited, a wholly owned CESC subsidiary, has agreed to subscribe to approximately 4.8% of the issued share capital of Resource Generation Limited.

-Shopaholics as Spencer's Retail recently launched its fourth hyper store in Axis Mall,Rajarhat.

-CESC has kept up its blazing performance in the sports arena.

2012

-CESC Ltd has entered into agreements for taking over from Indiabulls Group two hydro electric power projects of an aggregate capacity of 146 MW in the state of Arunachal Pradesh.For the aforesaid purpose, the Company has acquired entire shares of Pachi Hydro Power Projects Limited and Papu Hydropower Projects Limited.

-Sanjiv Goenka marks foothold in IT space with Firstsource buys.

2013 -CESC Ltd executed the first 300 MW Thermal Power Unit of 2 X 300 MW project at Chandrapur. Maharashtra by Dhariwal Infrastructure Limited -CESC Ltd has recommended a dividend at the rate of Rs. 7 per share for the year 2012-13. -Top Infrastructure Company Award to CESC under "Power Distribution" Category by Dun & Bradstreet Infra Awards,2013

2014 -Top Infrastructure Company Award to CESC under "Power Distribution" Category by Dun & Bradstreet Infra Awards,2014. -CESC Ltd won Asian Power Awards 2014 in the category of Innovative Power Technology of the Year.

2015 -CESC signs MoU with Silver Spring for smart grid business -CESC won the rights to operate the Pune franchise of the Indian Premier League for a period of two years -Smart grid for power supply -CESC launches Mobile App for consumers' convenience

2016 -CESC bags power supply order in Rajasthan. -CESC Launches Safety Drive to make electricians aware of ways to avdoid hazards. -Coal India commences supply of coal for CESC's Chandrapur plant.

2017

- Asian Power Awards 2017 - Rashtra Vibhushan Award 2016-17 - ICC Award 2017 ( 1st Runner-up under the category - Quality of Service Award) - ICC Award 2017 ( 1st Runner-up under the category - Efficient Distribution Operation Award) - 8th CII National HR Excellence Award 2017

2018

- RP-SG Retail Limited and RP-SG Business Process Services Limited arising out of implementation of the Scheme referred to in the letter. The same is being posted on the
Company's website also.
Please also note that effective 13 December 2018, Registrar of Companies, West Bengal has approved change of names of RP-SG Retail Limited to Spencer's Retail Limited and
RP-SG Business Process Services Limited to CESC Ventures Limited.

2019

-The company executed a Distribution Franchisee Agreement with Maharashtra State Electricity Distribution Company Limited governing power distribution rights for Malegaon Municipal Corporation Area under Malegaon Circle in the state of Maharashtra. Malegaon Power Supply Limited, a 100% CESC subsidiary, will undertake the distribution franchisee operations. 2021

-CESC's wholly owned subsidiary, Eminent Electricity Distribution Ltd. has emerged today as highest bidder for acquiring 100% stake in power distribution company for Union Territory of Chandigarh.
The above acquisition for Distribution license is subject to further formalities as prescribed under the tender documents including receipt of letter of intent.