This is a good novel. Here 'This' is-

• This is a good novel. - Here 'This' is- ক) Demonstrative Pronoun.• Demonstrative Pronoun:- A demonstrative pronoun is a pronoun used to point to specific people or things.- কোনো ব্যক্তি বা বস্তুকে যদি এটি, ওটি, এগুলি, ওগুলি ইত্যাদি শব্দ দ্বারা নির্দেশ করা হয় তাহলে এই শব্দগুলোকে বলে demonstrative pronoun. - যেমন: this, that, these, those, etc• সাধারণত pronoun ৮ প্রকার। যথা-- Personal Pronoun (I, we, me, it),- Demonstrative Pronoun (this, that), - Interrogative Pronoun (what, who), - Relative Pronoun (what, who, that), - Indefinite Pronoun (one, some, any, all, many), - Distributive Pronoun (each, every), - Reflexive Pronoun (myself, themselves), - Reciprocal Pronoun (each other, one another).Source: A Passage to the English Language by S. M. Zakir Hussain.