Do we sons need to be present when selling property in mother’s name?

Hi Experts, We neer some guidance regarding a property matter in Lucknow. Commercial property was originally in my father and mother’s joint name. Before my father passed away, he made a registered will saying that his share of the property should go to my mother. After he passed away, we also got the mutation done, and now the property is fully in my mother’s name. Now we are selling the property, we want to understand that whether we the sons (both are overseas) also need to be there at the time of registration. Can you please guide us: Do we (the sons) need to be there at the time of registration. Is the registered will and mutation enough for my mother to sell on her own? Thank you so much for your help.