When selecting return gift ideas for a 1st birthday celebration in Guwahati, it's important to choose items that are safe and meaningful for young children. Consider personalized baby onesies or rompers with the child's name or a special birthday message. These make for adorable keepsakes and practical clothing items for the baby.

Another thoughtful choice is soft plush toys, such as stuffed animals or cuddly characters. These universally loved toys can provide comfort and joy to the birthday child. Additionally, consider baby board books with colorful illustrations and simple stories to encourage early literacy and quality bonding time between parents and their child. Always prioritize safety and consult with the parents for any specific preferences or safety concerns related to their child's age to ensure that the gifts are both enjoyable and safe for the family.