Clarification on availability of ITC balance for refund

Question:

I am filing refund of unutilized ITC for the period January 2025 to May 2025.

  • As per my GSTR-3B, the refund claim for this period amounts to:
    • IGST: ₹50,000
    • CGST: ₹25,000
    • SGST: ₹25,000
    • Total = ₹1,00,000
  • However, as of 31st May 2025, my ECL showed:
    • IGST: ₹40,000
    • CGST: ₹40,000
    • SGST: ₹40,000
  • After filing returns for June and July 2025, my ECL balance increased to:
    • IGST: ₹70,000
    • CGST: ₹40,000
    • SGST: ₹40,000

Now, when I file refund in August 2025 for the period Jan–May 2025, can I claim IGST refund of ₹50,000 (as per my 3B) since the balance available in my ECL at the time of filing is sufficient (₹70,000), although it was only ₹40,000 as of May?