Can I get indexation benefit on renovation cost of my home without bill to save capital gain?

I plan to sell my 48-year-old house and have obtained a valuation, as of 1 April 2001, for long-term capital gain (LTCG) calculation. Over the years, I’ve spent a significant amount on repairs and renovations, but have no receipts or payment proof. While filing ITR after the sale, can I add and index these major expenses, along with the valuation-based cost?