Leader of the Islamic movement in Nigeria (IMN), Ibrahim El-Zakzaky, has arrived Delhi, capital of India, with wife Zeenat for medical treatment.
They were received by medical doctors and wheeled into the hospital.
El-Zakzaky had earlier made a stopover at Dubai International Airport early Tuesday, Igbere TV reports.
El-Zakzaky departed Nigeria around 6:30 pm on Monday aboard an Emirate flight.
The IMN leader and his wife have been in detention since their arrest in December 2015 after violence that saw the army kill some 350 of his followers.
Fears over the couple’s health had fuelled a wave of recent protests in Abuja that descended into bloodshed after a brutal crackdown from security forces.
A court last week granted permission for them to receive medical care in India under Nigerian government supervision.
The authorities insist they must return to Nigeria to stand trial once their treatment is completed.