Page 216 - Tata_Chemicals_yearly-reports-2017-18

6. Goodwill on consolidation

` in crore
Particulars As at As at
31 March, 2018 31 March,2017
Carrying value as at 1 April 1,698.41 1,761.93
Exchange fluctuations 33.44 (63.52)
Carrying value as at 31 March 1,731.85 1,698.41
Goodwill of ` 1,363.89 crore (2017: ` 1,357.09 crore) and ` 216.03 crore (2017: ` 189.39 crore) relates to the CGUs - Tata Chemicals North America
Inc. and it’s subsidiaries (‘TCNA Group’) and Cheshire Salt Holdings Limited Group and it’s subsidiaries (‘CSHL Group’) respectively. The estimated
value in use of the CGUs are based on future cash flows assuming an annual growth rate 2% to 3% for the period subsequent to the forecast
period of 5 years and discount rates in the range of 6% to 8%, which consider the operating and macro-economic environment in which the
entities operate.
An analysis of the sensitivity of the change in key parameters (operating margin, discount rates and long term average growth rate), based on
reasonably probable assumptions, did not result in any probable scenario in which the recoverable amount of the CGUs would decrease below
the carrying amount.
Goodwill of ` 151.93 crore (2017: ` 151.93 crore) has been allocated to three CGUs (Individually immaterial) within the Agri Business Segments,
and evaluated based on their recoverable amounts which exceeds their carrying amounts.

7. Intangible assets
` in crore
Particulars Computer Technical Product registration, Mining Total
Software knowhow contractual rights and rights
others*
Gross Block
Balance as at 1 April, 2016 14.13 6.84 20.52 7,376.97 7,418.46
Additions 3.36 4.53 1.41 3.81 13.11
Disposals (0.21) - - - (0.21)
Transferred to Discontinued operations (note 24 & 34) (1.18) - - - (1.18)
Exchange fluctuations (0.19) - - (176.22) (176.41)
Balance as at 31 March, 2017 15.91 11.37 21.93 7,204.56 7,253.77
Additions 3.15 3.99 0.26 32.09 39.49
Disposals (1.61) - - (0.24) (1.85)
Transferred to Discontinued operations (note 24 & 34) (0.04) - - - (0.04)
Exchange fluctuations 0.06 - - 53.66 53.72
Balance as at 31 March, 2018 17.47 15.36 22.19 7,290.07 7,345.09

Accumulated amortisation
Balance as at 1 April, 2016 6.76 3.45 5.67 89.36 105.24
Amortisation for the year 2.43 2.84 5.64 90.64 101.55
Transferred to Discontinued operations (note 24 & 34) (0.99) - - - (0.99)
Exchange fluctuations (0.15) - - (5.09) (5.24)
Balance as at 31 March, 2017 8.05 6.29 11.31 174.91 200.56
Amortisation for the year 2.27 3.49 4.48 87.86 98.10
Impairment 0.01 - - - 0.01
Disposals (0.04) - - - (0.04)
Transferred to Discontinued operations (note 24 & 34) (0.02) - - - (0.02)
Exchange fluctuations 0.04 - - 6.72 6.76
Balance as at 31 March, 2018 10.31 9.78 15.79 269.49 305.37
Net Block as at 31 March, 2017 7.86 5.08 10.62 7,029.65 7,053.21
Net Block as at 31 March, 2018 7.16 5.58 6.40 7,020.58 7,039.72
* Others include rights to use the wagon provided by the Ministry of Railways to carry goods at concessional freight.

214 Annual Report 2017-18