Your go-to list of emotional, funny, short & cute lines—perfect birthday wishes for sister to copy and share on WhatsApp & Instagram. Table of Contents Introduction – Why Sister’s Birthday Is Special Emotional Birthday Wishes for Sister (20) Funny Birthday Wishes for Sister (20) Short & Cute Birthday Wishes for Sister (20) Birthday Wishes for Elder Sister (20) Birthday Wishes for Younger Sister (20) FAQs + Hindi Link Why Sister’s Birthday...