The paint material and labour price of wall painting typically depends on the quality and quantity of paint used, the size of the surface to be painted, and the complexity of the job. The material paint price is basically the product price which includes products : Primer, Putty which are base coats and top coats like Asian Paints Royale for Interiors, Asian Paints Ultima for Exteriors etc.
The Labour cost is how much will the contractor take to paint a house on daily basis or complete cost of  full house painting.
Generally, the costs are calculated on a per square feet basis of material plus labour. High-quality plain finish paints can range from Rs. 40 to Rs. 60 per sqft depending on painter's experience and skill level.