Yes, dependants on a student dependant visa are eligible to apply for UK ILR. They must fulfill the eligibility criteria to apply for British permanent residency.
The eligibility criteria for dependants to apply for UK ILR are:
- The primary candidate, the international student, should have continuously resided in the UK for the past 5 years.
- Have the required score in the English language proficiency test
- Qualify the 'Life in the UK' test