If you are stretched for price at the moment, I will recommend that you do not take half measures right now. Consider low end HTIBs such as those from Sony, Samsung, etc. that are available for 15-20k all incl. Believe me that entry level AVR will cost money and very soon you will realize their limitations. For instance, if Denon is the brand we are talking about, discard anything below AVR-1912, which should be your minimum/baseline. But right now it is too expensive; so settle for something that can be considered use and throw.
But if you have a BD-player, you cannot consider the DVD-HTIB's such as above. In that case, you can opt for an entry level HTIB such as Onkto HT-S3100 or HT-S3300.
When the time comes (say in 2/3 years) that you have the money and inclination, go for a decent setup with a mid-range AVR, good speakers, etc. At that time, you will not feel much about discarding the cheapo HTIB. Or even better, you can move the cheap HTIB to a bedroom with secondary TV.