Husband birthdays are strange because most couples have quietly replaced gifts with plans — dinner, a weekend, a cake at midnight. So an actual wrapped object arrives unexpected, and that's the entire advantage. The opening is whatever he won't buy himself out of ordinary self-denial: the better luggage, the second watch, the power bank that isn't the cheapest one on the shelf.
₹3,000 to ₹5,000 is defensible for exactly that reason. Below ₹2,000 you're in grooming-kit territory — useful, forgettable. Above ₹7,000 you're buying tech that has to match preferences you'd need to ask about, which kills the surprise. This page covers four categories at that level: a two-piece hard trolley set, two analog watches, a 20000 mAh power bank and four pairs of wireless headphones. The luggage is the outlier and probably the strongest play — almost nobody buys their own suitcase until the old one breaks, and this one carries a 3-year global warranty.
The pitfall worth flagging is gifting fragrance blind. Scent is rarely discussed between couples and intensely personal, and his reaction is visible if you hand it over in front of family. There's deliberately no perfume on this page for that reason. If he already wears something daily, a bigger bottle of that exact thing beats anything you'd pick for him.