Where can I buy genuine durian saplings and what should I check before planting?

Durian planting material in India is scarce and expensive, and this is exactly where many people get cheated, so be very careful. Prefer grafted plants of a known, named variety over seedlings, because seedlings are slow and variable and may never fruit well, and buy only from a reputable horticulture nursery, research station, or a trusted established grower who can show you the parent trees. Inspect the graft union, choose healthy hardened plants, ask about the variety and its proven performance in Indian humid conditions, and keep all bills. Durian needs wide spacing because the trees are large, so plan a low number of trees per acre and confirm the exact spacing with a horticulture expert for your soil. Given the cost and uncertainty, start with a small number of plants as a trial rather than a big investment, and get establishment and care advice from a KVK or research station that has actually grown it. Do not pay high prices for unverified material.