Share-based payments (Tables)

12 Months Ended

Mar. 31, 2018

Disclosure of Share-based payments [Abstract]

Disclosure of number and weighted average exercise prices of share options [text block]

As the number of stock options and the price of those options were made known to each allottee, the Plan has been considered as a fixed price grant. Stock option activity under the ASOP 2014 and ASOP 2007 Plan is as follows:

No. of options granted, exercised and forfeited	Number of options		Weighted average exercise price in ₹		Number of options		Weighted average exercise price in ₹		Number of options		Weighted average exercise price in ₹
	2018		2018		2017		2017		2016		2016
Outstanding at the beginning of the year		5,837,400		73.55		5,665,800		79.10		5,870,800		79.10
Granted during the year		150,000		146.23		525,000		58.69		184,300		79.10
Forfeited during the year		(653,100)		79.10		(353,400)		79.10		(389,300)		79.10
Expired during the year		-		-		-		-		-		-
Exercised during the year		(153,860)		79.10		-		-		-		-
Outstanding at the end of the year		5,180,440		78.79		5,837,400		73.55		5,665,800		79.10
Exercisable at the end of the year		4,340,070		79.00		3,711,130		79.14		2,544,180		79.10

Disclosure of number and weighted average remaining contractual life of outstanding share options [text block]

A summary of information about fixed price stock options outstanding with respect to ASOP 2014 is furnished below:

As at	Range of exercise price in ₹	Number outstanding at March 31		Weighted average exercise price in ₹	Weighted average remaining contractual life	Number exercisable at March 31		Weighted average exercise price In ₹
March 31, 2018	57.66 - 146.23		5,180,440	57.66 - 146.23	0.06 - 4.81 years		4,340,070		78.79
March 31, 2017	60.60 – 82.00		5,837,400	60.60 – 82.00	1.80 – 5.79 years		3,711,130		79.14

Disclosure of indirect measurement of fair value of goods or services received, share options granted during period [text block]

The assumptions used in Black Scholes model to arrive at the fair value on grant date for the options granted during the year are summarised below:

Grant date	Jan 18, 2018
Category	Category III
Current market price	₹ 162.51
Exercise price	₹ 146.23
Expected term	2-5 years
Volatility	53.15% to 97.76%
Dividend yield	12%
Discount rate	3%