May be the company is good for freshers but not fo...

May be the company is good for freshers but not for Professional people.
Attended interview on 15 March 2019, Cleared the technical round and we were discussing about my shift timings, client name, my roles and responsibilities, current ongoing projects/ issues ,team size , team person names and etc. He informed me to speak to HR for salary package and joining date etc.
Very very bad experience: Seems only one HR person(she) in that Chennai Ayanambakkam office , after the discussion ,she also congrats me and informed me that we will be sending a official mail to provide all the required documents for the offer letter. I was happy with my roles and been waited till 19March and reach her mobile, Company landline and follow up mails for updates but no response from her Accidentally She took my call and after hearing my name she cut the call and messaged me she is on call and will call me back soon . All I asked her in the mail , for some reason if you choose another candidate, Kindly let me know and I don t know any problem in that But no response .. Very poor .. wasted my time and energy