Intangible assets (Tables)

12 Months Ended

Mar. 31, 2018

Disclosure Of Intangible Assets And Goodwill Explanatory [Abstract]

Disclosure of detailed information about intangible assets [text block]

Intangible assets comprise the following:

	March 31, 2018		March 31, 2017		March 31, 2016
Goodwill		14,595		14,595		14,595
Other intangible assets		567,917		544,507		591,051
		582,512		559,102		605,646

Disclosure of reconciliation of changes in goodwill [text block]

The following table presents the changes in goodwill during the years ended March 31, 2018 and 2017

	March 31, 2018		March 31, 2017
Balance at the beginning of the year		14,595		14,595
Effect of movement in exchange rates		-		-
Impairment loss recognized during the year		-		-
Net carrying amount of goodwill		14,595		14,595

Disclosure of detailed information about the intangible assets other than goodwill [Text Block]

The following table presents the changes in intangible assets during the years ended March 31, 2018, 2017 and 2016.

	Bandwidth Capacity		Software		License fees		Total
(A) Cost
Balance as at March 31, 2015		576,508		557,026		73,000		1,206,534
Acquisitions during the year		65,883		62,822		-		1,28,705
Disposals during the year		-		-		-		-
Balance as at March 31, 2016		642,391		619,848		73,000		1,335,239
Acquisitions during the year		-		72,050		-		72,050
Disposals during the year		-		-		-		-
Balance as at March 31, 2017		642,391		691,898		73,000		1,407,289
Acquisitions during the year		-		163,505		-		163,505
Disposals during the year		-		-		-		-
Balance as at March 31, 2018		6,42,391		855,403		73,000		1,570,794
(B) Amortization
Balance as at March 31,2015		140,591		483,097		23,056		646,744
Amortization for the year		50,407		44,387		2,650		97,444
Impairment loss on intangibles		-		-		-		-
Balance as at March 31, 2016		190,998		527,484		25,706		744,188
Amortization for the year		56,396		59,548		2,650		118,594
Impairment loss on intangibles		-		-		-		-
Balance as at March 31, 2017		247,394		587,032		28,356		862,782
Amortization for the year		56,895		80,550		2,650		140,095
Impairment loss on intangibles		-		-		-		-
Balance as at March 31, 2018		304,289		667,582		31,006		1,002,877
(C) Carrying amounts
As at March 31, 2016		451,393		92,364		47,294		591,051
As at March 31, 2017		394,997		104,866		44,644		544,507
As at March 31, 2018		338,102		187,821		41,994		567,917