Referring Wiki, Saas-Bahu ka mandir (Mother-in-law - Daughter-in-law's Temple), or Sahastrabahu Temple, is located to the east of Gwalior Fort. Built in 1092 by King Mahipala of the Kachchhapaghata (Kachchhwaha) dynasty, this temple is one of the greatest architectural marvels situated by Gwalior Fort.
It was named SahastraBahu, depicting Lord Vishnu with a thousand hands. Lord Vishnu was worshiped by the wife of Kachchhapaghata's king, but when his son's wife came, she became a devotee of Lord Shiva. Thus, another temple beside Vishnu temple was built, where Lord Shiva was worshiped by the wife of the king's son. Collectively, these two temples were named 'Sas-Bahu temple', meaning the daughter-in-law and mother-in-law's temple.
Teli Ka Mandir is an ancient temple, which is located in the Gwalior Fort complex and is famous for its splendid architecture. Teli Ka Mandir is built in 11th century and considered the oldest temple of the Gwalior Fort. It is a Brahmanical sanctuary and was refurbished between 1881 and 1883, having a blend of south and north Indian architectural styles.
Sun Temple built by the Aditya Birla Trust is the second Temple dedicated to Sun in India (Konark Sun Temple being the first) and is an exact replica of the famous Konark Sun Temple, Odisha.
As part of Incredible India series, I had earlier shared blog posts on Karnataka Road Trip, Qutub Minar, Golconda Fort, Humayun's Tomb, Temples in Delhi, Bird Watching, Gwalior Fort & Gwalior Palace Museum.