In order to run an advertisement in the newspaper for a month, you need to avail insertion offers, wherein you can book 25 ads & get 6 ads free, which will cover the whole month. But such offers vary from newspaper to newspaper & you can review them on the rates & offers page.
Please know that as per the newspapers specified by you, Sandesh covers Ahemdabad & Baroda while Dainik Bhaskar is not circulated in either of the specified locations. Hence it is suggested that you opt for Sandesh in order to book the ad for Ahmedabad & Baroda through the following link:http://sandesh.releasemyad.com/rates/wedding-arrangements.
Along with this you may avail to place your ad in the Wedding Arrangement section of Maharashtra Times to cover Mumbai as well as avail insertion offers from here: http://maharashtratimes.releasemyad.com/rates/wedding-arrangements.
You can compose the advert as per your requirement with the help of Sample ads & the online ad enhancers available to design you ad.
At the end you are required to select the dates & clear the payment in order to ensure the release of the classified ad. Please complete the booking process at leats 2-3 days before the ad is due to be released.