My father passed away on 25th April 2019 and the first year shradha (Thavasam) falls due on 11th to 14th 2020. I am the younger son and out of the country. My brother is in Delhi and my mother is in Trichy. Due to lockdown we are not able to join at Trichy to perform the Shradha. Under the circumstances what should be done? I shall be grateful for your kind advise.