I have to attend a conference in Dublin in July 2018. We will arrive in London on 7th July 2018 (7:30am) and connect to a flight to Dublin at 1:15 pm. After the conference, we will go back to London on 14th July and have a flight from London to Delhi on the 16th July.
Should we apply for a UK visa or Irish visa? Is the type of trip business (academics)? If we apply for a UK visa, should the number of days in UK be 10 or 2?