My 2 cents:-
- GMDC/NMDC - Currently iron ore prices are around their lowest in a few years due to lack of demand from China and dumping of surplus inventory at very cheap prices. I have no way of ascertaining if and when they'll normalise. Commodities tend to react very dramatically both ways and you must have deep insight to stay ahead of the game in such businesses.
I myself am invested in NMDC and still regretting it. (Looking to take the dividends and start selling small allocations)
- Kaveri Seed - No expert on that business. At current price and previous track record of company, seems attractive to me. Invested at even more than your holding price. I plan to remain invested for the near-medium term.
And that covers 62-63% of your portfolio - wow! You obviously wanted to bet big and reap handsome rewards
Anyway - I believe there are some quality names as well in there such as Repco, Axis Bank, etc. But PF allocation is very important and you may be learning it the hard way currently.
If I have to sum up my advice for you in 1 line -
Only sell if you believe you didn't do enough due diligence the first time when investing in these businesses or the business environment has changed completely since your purchase. All other times - ignore the volatility and get away from looking at day to day fluctuations of stock prices.