How can an NRI legally marry an Indian?

The male applicant, an NRI residing in Dublin, Ireland, has come to India for marriage, and the female applicant, a resident of Chalisgaon and working in Pune, wish to solemnize their marriage legally at the earliest. Both are Hindus and consenting adults. The male’s family supports the marriage, while the female’s father is hesitant though her married brother agrees. They seek guidance on whether to marry under the Hindu Marriage Act or the Special Marriage Act, the required documents and affidavits, the notice or waiting period and if it can be expedited, the appropriate jurisdiction since both live in different states, and whether parental consent is needed for adult applicants.