No. There are multiple reasons for this:
1. Scientists and engineers working on critical tech. are state assets. Any engineer/scientist that has worked in these areas of technology will be prohibited to work for a foreign entity to defeat espionage. Even private technology companies have clauses that do not allow employees to work in a similar project for a competing firm.
2. How is the government going to justify spending money on hiring foreigners? Will they be working inside HAL/ADA, DRDO, OFB? If yes, then majority of their teams would still be the same people who are not delivering now. Secondly, these organizations are have their budgets and are autonomous to a large extent and any attempt to breach their autonomy will be resisted. These are strike-khor sarkaari babus we are talking about.
3. The way U.S attracts foreign workers is via its education system and then employs them. Many of the scientists working in NASA have completed their higher education from American universities and found employment there. Money is not the only factor, life in a lot of western nations is better than in India and they can find better academic as well as professional opportunities there.
4. You want to make India an attractive destination for foreign workforce? Overhaul the higher education system, get investments from the industry, improve law and order and increase the standard of living. It is a tall order.
Forget it. The only way we can let Russian engineers is with Russian government consent. You can not treat scientists like mercenaries. And there is no way Russia is lending its engineers to destroy their largest aviation market.
Placements? Dude, PSUs do not hire like this. For junior positions you need to clear an exam and then you get a job for life.