Indus valley civilisation (2300-1750 BC); Indo-Aryan states (1500-600 BC)-
Dholavira, Lothal(World's 1st dockyard), Kalibangan (World's 1st plough field), Harappa
Kalibangan and Harappa are not so authentic. Dholavira is a major gap
Pre-Mauryan Period and Mauryan Empire (600-185 BC), Asoka, Northern kingdoms-
Nalanda university is much larger than sompura mahavihara and Taxila
Sacred Buddhist route including Sarnath, Kausambi and Kusinagar, Vaisali
Kingdoms in South India; Cholas, Hoysalas, Hindu Vijayanagar Empire-
South India is least represented in whole India despite its rich heritage.
South Indian temples of Meenakshi, Kanchipuram and Srirangam
Hoysala temples in Belur, Halebedu and Somnathpura (most important phase of Dravidan architecture)
Kerala temples of Padmanabhaswamy and Vaikunthanath
Kakatiya monuments of Warangal (Ramappa temple, Thousand pillars temple). Pattadkal can be also extended to include Badami and Aihole (Represent South Indian Cave architecture)
North India (300-1200 AD ) – Forts of Rajasthan are well represented. It may extended to include some privately owned forts like Gwalior, Mehrangarh and Junagarh (Bikaner)
Stepwells are not at all represented (Rani ki Vav and Chand Baori)
Jain temples are also not represented which have fine carvings and decorations (Dilwara Temples, Ranakpur Temple). Sacred mountains of Girnar and Palitana may be also treated as gaps.
Regional kingdoms in the north (Bengal, Malwa, Gujarat, Jaunpur, Kashmir)-
Bengal-Terracotta Temples of Bishnupur
Malwa- Mandu(example of central Indian Islamic city)
Gujarat- Ahmedabad (Already represented by Champaner)
Jaunpur, Kashmir - North Indian Islamic monuments are well represented
Maratha empire in Maharashtra- There are many Maratha forts but forts in India are well represented
Islamic Kingdoms of Deccan- Not at all represented.
Golconda fort- Having wonderful acoustic property (A clap can be heard upto the palace making it one of the strongest fort in all over India). Also famous for dimond trade.
Gol gombuz-2nd Largest dome in all over world and largest in Asia till modern Era
Sikh Kingdom- Harmandir Sahib
Mughal Empire- Well represented but may include Kashmir gardens
Modern Era- Chandigarh (a masterpiece of Modern town planning).
Tibetan architecture is not well represented. Monasteries of Ladakh may feature here.