Filling inocme tax return with majority of income is from gift

Hello, Still 2 years back my wife was house wife with no income as such.Since last year 2015-2016 till now she is working and her salaried income was 50,000 per year.Till now she has not filed income tax return. a) In financial Year 2015-2016 he father gave her amount around 1.50 lak as gift but no gift did is done.So her income was around 2lak in year 2015-2016 hence we didn't filed income tax return. b) In financial Year 2016-2017 he father again gifted her around 2lak.So for financial year her income was around 3 lak out which 2 lak was gifted by her father. We want to know do we need to file income tax return for financial year 2016-2017 since total income is including gift is around 3 lak. Thanks with regards Uday