Statement 1 is correct while statement 2 is incorrect.
The Zonal Councils are the statutory bodies. They are established by an Act of the Parliament, that is, States Reorganisation Act of 1956. The act divided the country into five zones (Northern, Central, Eastern, Western and Southern) and provided a zonal council for each zone. The home minister of Central government is the common chairman of the five zonal councils. Each chief minister acts as a vice-chairman of the council by rotation, holding office for a period of one year at a time.

Both the statements are incorrect.
Red soil develops on crystalline igneous rocks in areas of low rainfall in the eastern and southern part of the Deccan Plateau.
The soil develops a reddish colour due to a wide diffusion of iron in crystalline and metamorphic rocks. It looks yellow when it occurs in a hydrated form. They are generally poor in nitrogen, phosphorous and humus.

Both the statements are correct.
A sovereign bond is a specific debt instrument issued by the government. They can be denominated in both foreign and domestic currency.
The central banks also control the supply of money within the economy by the use of these bonds. When the government is in expansionist mode, the central bank will back debt in exchange for cash to raise capital for the expenditure. In case, it is in the contracting mode, the banks hope to slow growth by selling more securities to take out liquidity from the system.

Reserve bank of India employs the monetary policy as an instrument of achieving the objectives of general economic policy.
The quantitative measures of credit control are:
• Bank Rate • Open Market Operations • Cash Reserve Ratio • Statutory Liquidity Ratio
Qualitative measures:
• Margin requirements: This refers to difference between the securities offered and amount borrowed by the banks.
• Consumer Credit Regulation: This refers to issuing rules regarding down payments and maximum maturities of instalment credit for purchase of goods.
• Guidelines: RBI issues oral, written statements, appeals, guidelines, warnings etc. to the banks.
• Rationing of credit: The RBI controls the Credit granted / allocated by commercial banks.
• Moral Suasion: psychological means and informal means of selective credit control.

2 and 3 are correct.
The Indo-Islamic architecture avoided the use of human and animal figures. The architecture of this period heavily used the principles of geometry – from decorative pattern to imbibing a sense of symmetry.
An important feature of the architecture during this period was the use of water in the premises of the constructions in the form of courtyard pools, fountains and small drains. Water was used primarily for three purposes: Religious purpose, cooling the premises and decorative purpose.