This has nothing to do with railways discussion. Since you are asking buses to Hinjawadi, here is the list. The frequency mentioned is average frequency. If you collect frequencies across multiple routes, you will see that the cumulative frequency is quite good for certain areas.
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The below list is to prove that service is there, but passengers are not interested to find out. They are always under the impression that frequency is less, service is not good and they will maintain this for years. If you explore, you will realize that service...
more...

is actually very good. Same is scenario for Pune Station as well.
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Airport Pune Airport to Hinjawadi (via Pune Station) - freq 60/90 min
43A Katraj to Hinjawadi (via Highway) - freq 1 hr
99 Swargate to Hinjawadi (via Karvenagar) - less frequent
100 PMC to Hinjawadi (via Vishalnagar) - freq 20 min
103A Katraj to Hinjawadi (via Kothrud Depot, Pashan) - freq 20 min
115P Pune Station to Hinjawadi (via Dange Chowk) - freq 20 min
208 Hadapsar to Hinjawadi (via Baner) - freq 20 min
306 Dange Chowk to Hinjawadi - freq 10 min
313 Chnichvad Gaon to Marunji - less frequent
313A Chnichvad Gaon to Chandkhed - less frequent
316 Chinchvad Gaon to Hinjawadi - less frequent
321 Sangavi to Hinjawadi (via Pimpale Saudagar) - less frequent
321A Pimple Gurav to Hinjawadi (via Pimpale Saudagar) - less frequent
324 Bhosari to Hinjawadi (via Pimple Saudagar) - freq 15 min
Vajra 6 Bhosari to Hinjawadi (via Pimple Saudagar) - freq 30 min
327 Alandi to Hinjawadi - less frequent
333 Pune Station to Hinjawadi (via Vishalnagar) - freq 30 min
372 Nigadi to Hinjawadi - freq 5-10 min
373 Wakad Flyover to Hinjawadi - freq 30 min