Get a a head start by acquiring a qualified English grammar through Tamil learning course. For instance, "Royal Easy English Grammar Through Tamil" is a viable course that delivers in depth material in three volumes, also referred to as stages. Each stage features various lessons that develop your English grammar skills step by step. The first stage is called the "Preliminary Level" and covers active and passive voice providing various examples and exercises using the Tamil meaning. The second stage is the "Intermediate Level" and teaches you proper grammar when using adjectives, phrases, adverbs and agreement of verbs in sentences. The third stage is the "Advanced Level" and covers essential topics that will help you develop your skills both in spoken and written language. You can also look for local community colleges or universities that offer English grammar through Tamil courses.
Use free Internet-based tools to keep learning English grammar through Tamil. Websites such as Tamil Cube feature free lessons that teach you how to use verb forms, and also teach you how to use different question forms. The Tamil Language website also provides English grammar through Tamil lessons that cover essential English grammar areas that will help you learn pronouns and their corresponding possessive forms, noun-noun sentences, negation of noun-noun sentences, plus it also features dialog lessons that teach you how to establish a dialog and exchange greetings with other people.
Use the Internet to interact with people whose native language is English. You can find people to chat with on English-based chat rooms such as LiveMocha, USAChatNow and ICQ. You can also pay to interact one-on-one with people who speak English at websites such as Acadia English. This site assigns a native English speaker that helps you develop your grammar and conversational skills. You will need an Internet-based phone, home telephone or a mobile device to use this site.
Read literature and news in English, and listen to English radio and music to get acquainted with what you have learned using the courses and Internet tools. This will help you become acquainted with proper English grammar.