Section 7(1) in The West Bengal Premises Tenancy Act, 1997
(1)(a)On a [suit] [Word substituted for the word 'proceeding' by W.B. Act 12 of 2006.] being instituted by the landlord for eviction on any of the grounds referred to in section 6, the tenant shall, subject to the provisions of sub-section (2) of this section, pay to the landlord or deposit with [the Civil Judge] [Words 'or the Civil Judge' first inserted by W.B. Act 6 of 2005, then, the words within third brackets substituted for the words 'the Controller or the Civil Judge' by W.B. Act 12 of 2006.] all arrears of rent, calculated at the rate at which it was last paid and upto the end of the month previous to that in which the payment is made together with interest at the rate of ten per cent per annum.(b)Such payment or deposit shall be made within one month of the service of summons on the tenant or, where he appears in the [suit] [Words substituted for the word 'proceeding' by W.B. Act 12 of 2006.] without the summons being served upon him, within one month of his appearance.(c)The tenant shall thereafter continue to pay to the landlord or deposit with [the Civil Judge] [Words 'or the Civil Judge' first inserted by W.B. Act 6 of 2005, then, the words within third brackets substituted for the words 'the Controller or the Civil Judge' by W.B. Act 12 of 2006.] month by month by the 15th of each succeeding month, a sum equivalent to the rent at that rate.