Hope you shall take it positively.
You are cash cow now for them…………..source of hefty commissions, sky high interest rates.
Your phone numbers, email, address, residence, office place etc are your property and M/s ICICI bank, and its recovery agents and have no right on it.
They can not intrude anywhere without your permission.
Even Government, Governor RBI that frames rules can not grant any right or permission to any bank or its agents to intrude.
As per various publications and even judgments by Supreme Court of India, M/s ICICI bank and its recovery agents have been notorious and seem to have not been reformed even after penalties and punishments by courts of law. These publications suggest that they have become habitual offenders. Same is the case with other banks like M/s HDFC bank, even SBI’s SBI Cards………….
You can search in both Experts/Forum section of LCI also and may go thru various thread e.g :
https://www.lawyersclubindia.com/forum/Harrasment-by-icici-banks-recovery-agents-76271.asp#.VbDKCrV-jMo
There are judgments by NCDRC prohibiting the sky high interest and charges the CC companies, banks levy.
You may record all calls……………………..ask them in a plain language that they can write to you by Redg. Post only……………………seek an appointment in writing by Redg. Post and you will grant appointment and meeting shall be recorded and minutes shall be signed by both on the spot, then and there………………………….or ask them to go to court…………………….as suitable to them….
You can approach police, court, and demand injunction from callers.