Development of regional architectural forms:

1. In Bengal: (i) In eastern India there was the development of two distinctive schools in Bengal and in Jaunpur. The most prominent buildings of the Bengal school belong to the Malda district in the remains of the two cities, Gaur and Pandua.

(ii) Here is an introduction of two important features. The first was the 'drop arch', which had a span greater than its radius and centres at the import level. The second was the method of raising the roof in a system of arched bays where small domes supported by diagonally arranged brick pendentives that helped transition from a square to a circular base.

(iii) Another development in this period was the transition from constructing bamoo houses to brick structures, during which a special form of a curved roof developed.

2. In Jaunpur: (i) Mosques are the best illustrations of the architectural styles from Jaunpur:

(ii) The styles here bear close resemblance to the Tughlaq style. The use of the arch and beam are notable features of this style.

3. In Western India: (i) In western India the development of regional architectural forms is notable in 14th century Gujarat. Here there is a distinctive change in the art form from the 14th to the 15th century.

(ii) In the 14th century there was a large-scale use of building material from demolished temples and in the latter there is a development of a new style in which the layout of the mosques copied the architectural imprint of temples.