He has two sons, Doctor Manikanda Prabhu and Hemachandra Prabhu.

Entity and relation annotations:
id: 0
type: entity
value: text: Hemachandra Prabhu
labels: <Person>
id: 1
type: entity
value: text: Manikanda Prabhu
labels: <Person>
id: 2
type: entity
value: text: Doctor
labels: <Title>
type: relation
to_id: 0
labels: Person:business/work:Person
from_id: 1
type: relation
to_id: 2
labels: Person:holds_title:Title
from_id: 1