Capital gains tax

Anand (Avp) (67 Points)

24 April 2020  
My mother ( 82 years) sold house/residential flat in her name, on 30 Aug 2018. There was capital gain.The amount was transferred to a capital gains account in Feb 2019. I have following questions on this ,

1. Do senior citizens have any exemptions with respect to capital gains?

2. What is the last date by which she has to invest capital gains in a new residential property?

3. Under prevailing situation ( COVID 19), has any exemptions/ relief measures been declared/applicable to this scenario?