How to get the trademarks of sivanna colours in India ?

In India Goods & services are classified as per International Classification of Goods and Services also known as the Nice Classification was established by the Nice Agreement (1957), is a system of classifying goods and services for the purpose of registering trademarks. Total number of goods & services are being classified into class 1 to 45 classes, in which class 1 to 34 are being classified for manufacturing of goods and from class 35 to class 45, for services provided by the service provider.

As per Nice Classification

Your goods (sivanna colours ) for cosmetics items or goods fall under class 3

You should make a prior Trademark search before making a Trademark Application to Trademark Registry in India through yourself or Through Registered Trademark Agent, but, I, would recommend you to Hire a Professional Trademark Agent for proper Trademark Search and making a Trademark Application to Trademark Registry in India.