Averaging the stock price in a falling market is never a good idea. Averaging is against basic principle of trading. But averaging when making purchase for investment is still ok. Among the stocks you hold, except deepak fertliser rest of them are all large caps so when market revive we are going to see all of them bouncing back faster than mid caps but our rating for short term are.
Suzlon- under performer , Tata Motors- Under performer, M&M Under performer, PNB- market performer , Reliance-outperformer. Deepak is a good long term buy as we might see some re-structring at company in next couple of quarters. So if you have bought them for trading, minor pull backs in counter like tata motors, pnb and M&M should be utilised to make an exit and book losses.