Russia doesn't know what to do with the $1 billion in rupees it is amassing in India each month
Not the worst "problem" to have.
there's more Indian demand for Russian goods than the other way around
We do have a bit of mismatch. America, for example, buys a lot from India. Primarily software and people. Russia does the same thing as India, where we sell software to others, and our labor is similarly used as outsource labor for a lot of software-related businesses. So Russia doesn't really need to buy anything from a hypothetical Infosys, because we don't have the Googles and Facebooks that require it, and instead we are sort of competing with the Indians.
There are further mismatches beyond our similar "cheap coders" issue. Many of the things we could buy from India, are cheaper and easier to deliver from China with which we share a border.
However, if things really came to a head, I'm sure we could cash those $1B a month in excess accumulations very quickly. We could buy Indian cut gems, for example, of which they are the largest world exporter. Yes, Russia is itself a number 1 diamond producer, but those gems could be resold for something other than rupees. Right now, Russia has difficulties importing Western cars. So instead we are buying a lot Chinese cars. India happens to have a relatively dynamic automobile industry - so then we could buy a ton of Indian cars and sell it to our own people. India has a huge pharmaceutical industry, so then we could purchase their generic medications in volume.
A lot one can do with a $1B of rupees per month.