Shridhar 22 April 2019
G.L.N. Prasad (Retired employee.) 23 April 2019
They must be Blank bond papers and not black bond papers.
Immediately contact with an advocate and get legal notice issued to him, without mentioning your loan or repayments or blank bond paper. The advocate will guide you suitably after studying the evidence part and will issue a well drafted and guarded notice. Also preserve record of the conversation.
Shridhar 23 April 2019
P. Venu (Advocate) 23 April 2019
Your earlier posting on the same lines has already received a number of suggestions.