Selling, general and administrative expenses (Tables)

12 Months Ended

Mar. 31, 2018

Disclosure Of Selling, General And Administrative Expenses [Abstract]

Disclosure of detailed information about general and administrative expense [text block]

	Year ended
	March 31, 2018		March 31, 2017		March 31, 2016
Personnel expenses		1,441,496		1,236,206		1,057,439
Marketing and promotion expenses		301,072		278,638		288,164
Administrative and other expenses*		2,652,246		2,476,429		2,133,684
		4,394,814		3,991,273		3,479,287

* Includes net foreign exchange loss of Nil, Nil and ₹ 6,218 for the years ended March 31, 2018, 2017 and 2016 respectively