First step : Decide on a date

First of all - decide on a date, since B'days are not relegiours functions , it can be celebrated on all days , however its good to leave out newmoon days (amavasya). Saturdays are more convinent w.r.t halls as it will be available . But keep in mind There are schools and banks are not off on Saturday. We realised it only after we started to invite. However if ur crowd is more of in IT sector and kids are in CBSE/ICSE syllabus schools , you need not worry..............Morning times are convinient if you have guests from out station and from other parts of bangalore so that they can finish the function by Noon and reach their homes by evening...............Evenings are specially better if you are planning to show some movies/Dance floors etc............we decided to celebrate it in the morning and on a saturday for simplest reason that the hall was not availble on sunday