The estimated average salary for a Senior Customer Support Associate at Firstsource Solutions is ₹79,563 per year or ₹38 per hour, but some professionals have reported earning up to roughly ₹135,029 per year (90th percentile). The typical pay range is between ₹60,662 (25th percentile) and ₹105,540 (75th percentile) annually. This is based on 6 salaries submitted by Firstsource Solutions Senior Customer Support Associate professionals on Glassdoor, as of Jun 2026.