The relevant Section is reproduced below.
85 (1) Whoever, in any street or thoroughfare or public place or in any place to which the public have or are permitted to have access, behaves in a disorderly manner under the influence of drink shall, on conviction, be punished,--
(a) for a first offence, with rigorous imprisonment for a term which may extend to six months and with fine which may extend to one thousand rupees;
Provided that, in the absence of special and adequate reasons to the contrary to be mentioned in the judgment of the court, such imprisonment shall not be less than three months and fine shall not be less than five hundred rupees; and
(b) for a Subsequent offence, with rigorous imprisonment for a term which may extend to one year and also with a fine of one thousand rupees:
Provided that, in the absence of special and adequate reasons to the contrary to be mentioned in the judgment of the Court, such imprisonment shall not be less than six months and fine shall not be less than one thousand rupees.
(2) In prosecution for an offence under Sub-section (1), it shall be presumed until the contrary is proved that the person accused of the said offence has drunk liquor or consumed any other intoxicant for the purpose of being intoxicated and not for a medicinal purpose.
In view of the discretion denied to the Court, except in exceptional cases, not to impose imprisonment the matter need to be contested. However, you may enquire as to the practice prevalent at present, esp. in Pune. If, as a matter of routine, only fine is imposed, you have the option to plead guilty, if so advised and of no adverse consequences.
It is matter of procedure followed in criminal courts that the accused need to take bail on the first appearance. This is a matter of routine, but cumbersome, as the accused need to furnish security or surety, and expensive, as this is a source of easy money for the advocate and his clerk. I have serious doubts as to the legitimacy of this procedure. It could be that this is a malpractice without any legal sanctity.