ETHDC Technologies interview questions

HR Conducted Face to Face interview rounds in the office. When I appeared for 1st round they conducted HR round and asked me basic questions like Salary Expectations and told me the range of 4.5 to 5.5 LPA they said OK and they moved me for 2nd round that is technical round and in the 2nd round they given me task and time period is 1 week, after i submitted that task they conducted one more technical round and asked me only one question on Servlet and they said you are shortlisted for last round. In last round they said we are ready to give you offer but we can offer you 3.5 to 4 LPA. I already said my range between 4.5 to 5.5 and after completion of all round they said sorry our budget is this much only.