Well, nowadays booking ads are no big deal. Online booking systems are available with various online ad agencies. Look out for some renowned ad agencies on the internet and book your ad.
I can suggest one such ad agency which I am aware of- releaseMyAd. This place offers advertisers to book ad in the easiest way. You can book Punya Nagari advertisement through them. You can either visit their online portal to book your advertisement for yourself, or you can even take their assistance to book ads. Write at firstname.lastname@example.org for any further query regarding ad booking.