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Goodwill and intangible assets (Tables) | 12 Months Ended
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Mar. 31, 2018
Text block1 [abstract] |
Summary of Movement in Goodwill Balance | The movement in goodwill balance is given below:
|  | Year ended March 31, |
|  | 2017 |  |  | 2018 |
Balance at the beginning of the year |  | ₹ | 101,991 |  |  | ₹ | 125,796 |
Translation adjustment |  |  | (4,319 | ) |  |  | 2,970 |
Acquisition through business combination |  |  | 28,124 |  |  |  | 1,172 |
Assets reclassified as held for sale |  |  | — |  |  |  | (12,354 | )
Balance at the end of the year |  | ₹ | 125,796 |  |  | ₹ | 117,584 |
Summary of Allocation of Goodwill to CGUs | Goodwill has been allocated to the CGUs as at March 31, 2017 and 2018 as follows:
CGUs |  | As at March 31, 2017 |  |  | As at March 31, 2018 |
Banking Financial Services and Insurance (BFSI) |  | ₹ | 19,826 |  |  | ₹ | 17,475 |
Healthcare and Life Sciences (HLS) |  |  | 48,144 |  |  |  | 49,085 |
Consumer (CBU) |  |  | 17,442 |  |  |  | 14,776 |
Energy, Natural Resources and Utilities (ENU) |  |  | 16,393 |  |  |  | 14,863 |
Manufacturing and Technology (MNT) |  |  | 23,086 |  |  |  | 20,406 |
Communication (COMM) |  |  | 905 |  |  |  | 979 |
|  | ₹ | 125,796 |  |  | ₹ | 117,584 |
Summary of Movement in Intangible Assets | The movement in intangible assets is given below:
|  | Intangible assets |
|  | Customer related |  |  | Marketing related |  |  | Total |
Gross carrying value: |  |  |  |  |  |  |  |  |  |  |  |
As at April 1, 2016 |  | ₹ | 18,360 |  |  | ₹ | 2,587 |  |  | ₹ | 20,947 |
Translation adjustment |  |  | (546 | ) |  |  | (314 | ) |  |  | (860 | )
Acquisition through business combinations |  |  | 2,714 |  |  |  | 4,006 |  |  |  | 6,720 |
As at March 31, 2017 |  | ₹ | 20,528 |  |  | ₹ | 6,279 |  |  | ₹ | 26,807 |
Accumulated amortization/ impairment: |  |  |  |  |  |  |  |  |  |  |  |
As at April 1, 2016 |  | ₹ | 4,164 |  |  | ₹ | 942 |  |  | ₹ | 5,106 |
Translation adjustment |  |  | (7 | ) |  |  | (68 | ) |  |  | (75 | )
Amortization and impairment * |  |  | 5,107 |  |  |  | 747 |  |  |  | 5,854 |
As at March 31, 2017 |  | ₹ | 9,264 |  |  | ₹ | 1,621 |  |  | ₹ | 10,885 |
Net carrying value as at March 31, 2017 |  | ₹ | 11,264 |  |  | ₹ | 4,658 |  |  | ₹ | 15,922 |
Gross carrying value: |  |  |  |  |  |  |  |  |  |  |  |
As at April 1, 2017 |  | ₹ | 20,528 |  |  | ₹ | 6,279 |  |  | ₹ | 26,807 |
Translation adjustment |  |  | 493 |  |  |  | 103 |  |  |  | 596 |
Acquisition through business combinations |  |  | 5,565 |  |  |  | 169 |  |  |  | 5,734 |
As at March 31, 2018 |  | ₹ | 26,586 |  |  | ₹ | 6,551 |  |  | ₹ | 33,137 |
Accumulated amortization/ impairment: |  |  |  |  |  |  |  |  |  |  |  |
As at April 1, 2017 |  | ₹ | 9,264 |  |  | ₹ | 1,621 |  |  | ₹ | 10,885 |
Translation adjustment |  |  | 14 |  |  |  | 11 |  |  |  | 25 |
Amortization and impairment * |  |  | 2,985 |  |  |  | 1,129 |  |  |  | 4,114 |
As at March 31, 2018 |  | ₹ | 12,263 |  |  | ₹ | 2,761 |  |  | ₹ | 15,024 |
Net carrying value as at March 31, 2018 |  | ₹ | 14,323 |  |  | ₹ | 3,790 |  |  | ₹ | 18,113 |
* | Includes impairment charge on certain intangible assets recognized on acquisitions, amounting to ₹Nil, ₹3,056 and ₹643 for the year ended March 31, 2016, 2017 and 2018, respectively.
Summary of Estimated Remaining Amortization Period for Intangible Assets Acquired on Acquisition | As at March 31, 2018, the estimated remaining amortization period for intangible assets acquired on acquisition are as follows:
Acquisition |  | Estimated remaining amortization period |
Global oil and gas information technology practice of the Commercial Business Services Business Unit of Science Applications International Corporation |  |  | 2.25 – 3.25 years |
Promax Application Group |  |  | 4.25 years |
Opus Capital Markets Consultants LLC |  |  | 0.75 – 2.75 years |
ATCO I-Tek |  |  | 6.50 years |
Designit AS |  |  | 0.25 – 2.25 years |
Cellent AG |  |  | 2.75 – 4.75 years |
HealthPlan Services |  |  | 1 – 5 years |
Appirio Inc. |  |  | 2.50 – 8.50 years |
Other entities |  |  | 2 – 14.25 years |

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