Compsnies Act

As per definition of Deposit as defined under section 2(31) which includes any receipt of money by way of deposit or loan or in any other form by a company, but does not include such categories of amount as mention in rule 2 sub rule 3 

In your query loan taken by company from other company seems to be excluded from the ambit of deposit under rule 2(c)(vi). 

Hope so this serve your purpose.